{"title":"Citroën","description":"\u003cp\u003eDiscover our premium collection of performance parts and accessories tailored specifically for Citroën vehicles. Whether you're upgrading for motorsport, off-road adventures, or custom builds, our range of high-quality components is designed to enhance your Citroën’s performance, reliability, and style.\u003c\/p\u003e","products":[{"product_id":"limited-slip-differential-plate-type-c1-1-0-12v-20tt-manual","title":"Citroën C1 Limited Slip Differential (Plate Type)","description":"\u003cdiv class=\"aos-product-description\"\u003e\n\n  \u003cp\u003e\n    Upgrade traction, stability and corner-exit performance with this\n    \u003cstrong\u003ePlate Type Limited Slip Differential (LSD)\u003c\/strong\u003e,\n    developed for the \u003cstrong\u003eCitroën C1 1.0 12V\u003c\/strong\u003e\n    equipped with the \u003cstrong\u003e20TT manual gearbox\u003c\/strong\u003e.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    Designed for motorsport, track-day and performance applications,\n    this plate\/washer type LSD helps reduce inside-wheel spin and\n    improves the ability to transfer power to the road when accelerating,\n    particularly when exiting corners.\n  \u003c\/p\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Product Overview\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cp\u003e\n        This \u003cstrong\u003eCitroën C1 Limited Slip Differential\u003c\/strong\u003e\n        is a plate\/washer type LSD designed for performance applications\n        using the compatible \u003cstrong\u003e20TT manual gearbox\u003c\/strong\u003e.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        By limiting excessive speed differences between the driven wheels,\n        the differential helps improve traction when accelerating and can\n        provide more consistent power delivery during corner exit.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        It is particularly suited to competition vehicles, track builds\n        and performance-focused Citroën C1 projects where predictable\n        traction and drivetrain response are important.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Citroën C1 Compatibility\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Citroën\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e C1\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e 1.0 12V\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eGearbox:\u003c\/strong\u003e 20TT manual gearbox\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Limited Slip Differential\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\n        \u003cstrong\u003eCompatibility must be confirmed before ordering.\u003c\/strong\u003e\n        Verify that your Citroën C1 is equipped with the correct\n        \u003cstrong\u003e20TT manual gearbox\u003c\/strong\u003e.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        Please compare the relevant dimensions shown in the product images\n        with your existing differential to help confirm fitment.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        If you are unsure about compatibility, contact Art of Speed with\n        your vehicle details and VIN before placing your order.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Key Features\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\u003cstrong\u003ePlate \/ washer type Limited Slip Differential\u003c\/strong\u003e\u003c\/li\u003e\n        \u003cli\u003eDesigned for Citroën C1 1.0 12V applications with the 20TT manual gearbox\u003c\/li\u003e\n        \u003cli\u003eHelps improve traction under acceleration\u003c\/li\u003e\n        \u003cli\u003eReduces excessive inside-wheel spin\u003c\/li\u003e\n        \u003cli\u003eImproves power delivery when exiting corners\u003c\/li\u003e\n        \u003cli\u003eProvides more consistent drivetrain behaviour during performance driving\u003c\/li\u003e\n        \u003cli\u003eSuitable for motorsport, track-day and performance builds\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Motorsport \u0026amp; Track Use\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cp\u003e\n        During hard cornering, an open differential can allow the unloaded\n        inside wheel to spin more easily, reducing effective traction.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        A plate type LSD is designed to limit this difference in wheel speed,\n        helping the drivetrain transfer torque more effectively across the\n        driven axle.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        For Citroën C1 competition and track applications, this can contribute\n        to more predictable acceleration and improved traction when exiting\n        corners.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Installation \u0026amp; Fitment\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cp\u003e\n        Professional installation by an experienced transmission or\n        motorsport specialist is strongly recommended.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        Before installation, confirm the gearbox identification and compare\n        the relevant differential dimensions with those shown in the\n        product images.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        Correct assembly, clearances and gearbox setup should be verified\n        during installation before the vehicle returns to use.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Production Lead Time\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cp\u003e\n        This Limited Slip Differential is\n        \u003cstrong\u003eproduced to order\u003c\/strong\u003e.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        \u003cstrong\u003eProduction lead time: approximately 6 weeks after purchase.\u003c\/strong\u003e\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        Production and material allocation begin after the order is placed.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Frequently Asked Questions\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        Is this LSD designed for the Citroën C1?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        Yes. This version is intended for compatible\n        \u003cstrong\u003eCitroën C1 1.0 12V\u003c\/strong\u003e applications fitted with\n        the \u003cstrong\u003e20TT manual gearbox\u003c\/strong\u003e.\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        What type of differential is it?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        It is a \u003cstrong\u003eplate \/ washer type Limited Slip Differential\u003c\/strong\u003e,\n        designed to limit excessive speed differences between the driven wheels.\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        What are the main benefits on track?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        The LSD helps reduce inside-wheel spin and can improve traction,\n        power delivery and consistency when accelerating out of corners.\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        How can I confirm compatibility?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        Confirm that your vehicle uses the 20TT manual gearbox and compare\n        the relevant dimensions shown in the product images.\n        If you are unsure, contact Art of Speed with your VIN before ordering.\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        How long does production take?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        This product is made to order, with an estimated\n        \u003cstrong\u003e6-week production lead time after purchase\u003c\/strong\u003e.\n      \u003c\/p\u003e\n\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n  \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n    Motorsport Use — Returns \u0026amp; Warranty\n  \u003c\/summary\u003e\n\n  \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n    \u003cp\u003e\n      This product is intended exclusively for \u003cstrong\u003emotorsport use\u003c\/strong\u003e.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      All sales are final: \u003cstrong\u003eno returns are accepted and no commercial warranty is provided\u003c\/strong\u003e.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      This does not affect any statutory rights that cannot legally be excluded.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n  \u003cdiv style=\"margin-top: 20px; padding: 15px; border: 1px solid #dddddd;\"\u003e\n    \u003cp style=\"margin: 0 0 10px;\"\u003e\n      \u003cstrong\u003eImportant:\u003c\/strong\u003e\n      This is a made-to-order product with an approximately 6-week production\n      lead time. Production and material allocation begin after the order\n      is confirmed.\n    \u003c\/p\u003e\n\n    \u003cp style=\"margin: 0;\"\u003e\n      Please verify compatibility carefully before purchasing.\n      As this product is made to order, orders cannot be cancelled, modified\n      or refunded once production has started.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cp style=\"font-size: 12px; color: #777777; margin-top: 16px;\"\u003e\n    \u003cem\u003e\n      Images are for illustrative purposes only and may not accurately\n      represent the final product. The actual appearance, finish,\n      dimensions and specific details may vary.\n    \u003c\/em\u003e\n  \u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"CityBug - C1, 107, Aygo","offers":[{"title":"Default Title","offer_id":55089078468946,"sku":null,"price":1550.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/5637\/8962\/files\/Diferencial_autoblocante_metalico_com_molas_visiveis.png?v=1792077800"},{"product_id":"standalone-ecu-for-plug-and-play-1kr-fe","title":"Citroën C1 1.0 1KR-FE Plug \u0026 Play Standalone ECU | Motorsport ECU","description":"\u003cdiv class=\"aos-product-description\"\u003e\n\u003cp\u003eUnlock the tuning potential of your \u003cstrong\u003eCitroën C1 1.0 12V with the 1KR-FE engine\u003c\/strong\u003e using this \u003cstrong\u003ePlug-and-Play Standalone Motorsport ECU\u003c\/strong\u003e. Designed for motorsport, track-day and off-road applications, this fully programmable engine management system provides advanced control over fuel delivery and ignition timing.\u003c\/p\u003e\n\u003cp\u003eSupplied with a base calibration for a stock engine and compatible with \u003cstrong\u003eTunerStudio\u003c\/strong\u003e, this ECU provides a flexible platform for standard, modified and forced-induction Citroën C1 builds.\u003c\/p\u003e\n\u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n\u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003eProduct Overview\u003c\/summary\u003e\n\u003cdiv style=\"padding: 0 0 16px;\"\u003e\n\u003cp\u003eThis \u003cstrong\u003eCitroën C1 1KR-FE Plug-and-Play ECU\u003c\/strong\u003e is a fully programmable standalone engine management solution developed for compatible vehicles using a \u003cstrong\u003edrive-by-cable throttle system\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIt provides extensive control over engine calibration, including fuel and ignition parameters, allowing the ECU to be configured according to the vehicle's engine specification and performance goals.\u003c\/p\u003e\n\u003cp\u003eWhether you are preparing a Citroën C1 for competition, developing a track car or building a modified 1KR-FE engine, this ECU provides a configurable engine management platform for performance-focused applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border-bottom: 1px solid #dddddd;\" open=\"\"\u003e\n\u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003eCitroën C1 Compatibility\u003c\/summary\u003e\n\u003cdiv style=\"padding: 0 0 16px;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Citroën\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e C1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e 1.0 12V 1KR-FE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel Years:\u003c\/strong\u003e 2004–2014\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Type:\u003c\/strong\u003e Drive-by-cable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Plug-and-Play Standalone ECU\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility must be confirmed before ordering.\u003c\/strong\u003e Vehicle specifications and ECU configurations may vary.\u003c\/p\u003e\n\u003cp\u003ePlease send Art of Speed a clear photograph of your \u003cstrong\u003eoriginal ECU and its identification label\u003c\/strong\u003e before purchasing so compatibility can be checked.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border-bottom: 1px solid #dddddd;\" open=\"\"\u003e\n\u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003eKey Features\u003c\/summary\u003e\n\u003cdiv style=\"padding: 0 0 16px;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play Installation:\u003c\/strong\u003e Designed for compatible original wiring configurations, reducing the need for extensive rewiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully Programmable ECU:\u003c\/strong\u003e Advanced control over fuel and ignition calibration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTunerStudio Support:\u003c\/strong\u003e Real-time and offline engine calibration through compatible TunerStudio software.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16x16 Interpolated Maps:\u003c\/strong\u003e Detailed calibration tables for precise engine management.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Tuning Strategies:\u003c\/strong\u003e Supports Volumetric Efficiency (VE), injection-time and Lambda-based correction strategies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoost Ready:\u003c\/strong\u003e Configurable MAP sensor support for compatible turbocharged applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlpha-N Calibration:\u003c\/strong\u003e Suitable for highly modified engines where MAP-based calibration may not be optimal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutotune:\u003c\/strong\u003e VE Analyze Live functionality can assist with automatic fuel-map adjustments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB-C Connectivity:\u003c\/strong\u003e Provides a direct connection for ECU configuration and tuning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWindows \u0026amp; Android Compatibility:\u003c\/strong\u003e Supports compatible tuning and monitoring environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border-bottom: 1px solid #dddddd;\" open=\"\"\u003e\n\u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003eMotorsport Features\u003c\/summary\u003e\n\u003cdiv style=\"padding: 0 0 16px;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eLaunch Control\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo-Lift Shift\u003c\/strong\u003e — optional harness required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWideband O2 Sensor Support\u003c\/strong\u003e — optional harness required\u003c\/li\u003e\n\u003cli\u003eReal-time engine monitoring\u003c\/li\u003e\n\u003cli\u003eCustomisable tuning dashboards\u003c\/li\u003e\n\u003cli\u003eSupport for modified and forced-induction engine configurations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional wiring, sensors or harnesses may be required depending on the motorsport functions and engine configuration used.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n\u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003eWhat's in the Box\u003c\/summary\u003e\n\u003cdiv style=\"padding: 0 0 16px;\"\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-and-Play Standalone ECU\u003c\/li\u003e\n\u003cli\u003eOEM-compatible case\u003c\/li\u003e\n\u003cli\u003eUSB-C cable\u003c\/li\u003e\n\u003cli\u003eSoftware USB stick\u003c\/li\u003e\n\u003cli\u003eQuick Start Guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n\u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003eBase Calibration \u0026amp; Tuning\u003c\/summary\u003e\n\u003cdiv style=\"padding: 0 0 16px;\"\u003e\n\u003cp\u003eThe ECU is supplied with a \u003cstrong\u003ebase calibration intended for a stock engine configuration\u003c\/strong\u003e to assist with initial setup.\u003c\/p\u003e\n\u003cp\u003eThe calibration should be checked and adjusted according to the actual engine specification, installed modifications, fuel system and operating conditions.\u003c\/p\u003e\n\u003cp\u003eFor modified engines, competition vehicles or forced-induction applications, professional ECU calibration by an experienced tuner is strongly recommended.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n\u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003eInstallation \u0026amp; Important Information\u003c\/summary\u003e\n\u003cdiv style=\"padding: 0 0 16px;\"\u003e\n\u003cp\u003eThe ECU is designed as a Plug-and-Play solution for compatible Citroën C1 1KR-FE applications, using the appropriate original ECU connection.\u003c\/p\u003e\n\u003cp\u003eNo extensive rewiring should be required for the standard compatible installation, although additional wiring may be necessary when using optional motorsport features, additional sensors or modified engine configurations.\u003c\/p\u003e\n\u003cp\u003eCorrect ECU calibration is essential. Installation alone does not guarantee additional engine power, efficiency or reliability. Results depend on the engine setup, supporting components and calibration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n\u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003eFrequently Asked Questions\u003c\/summary\u003e\n\u003cdiv style=\"padding: 0 0 16px;\"\u003e\n\u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003eIs this ECU compatible with the Citroën C1 1.0 1KR-FE?\u003c\/h3\u003e\n\u003cp\u003eIt is designed for compatible Citroën C1 1.0 12V vehicles equipped with the 1KR-FE engine and a drive-by-cable throttle system. Compatibility should always be confirmed using the original ECU identification before ordering.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003eIs the ECU Plug-and-Play?\u003c\/h3\u003e\n\u003cp\u003eYes. It is designed to connect to compatible original vehicle wiring without extensive rewiring.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003eDoes the ECU include a base map?\u003c\/h3\u003e\n\u003cp\u003eYes. A base calibration for a stock engine configuration is included. It should be verified and adjusted for the individual vehicle.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003eCan this ECU be used on a turbocharged 1KR-FE?\u003c\/h3\u003e\n\u003cp\u003eThe ECU supports configurable MAP-based tuning for compatible forced-induction applications. Additional sensors, supporting hardware and professional calibration may be required.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003eDoes it support Launch Control and No-Lift Shift?\u003c\/h3\u003e\n\u003cp\u003eYes. These motorsport functions are supported, although an optional harness may be required depending on the installation.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003eHow do I confirm compatibility before ordering?\u003c\/h3\u003e\n\u003cp\u003eSend Art of Speed a photograph of your vehicle's original ECU, including the identification label, so the application can be checked.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border-bottom: 1px solid #dddddd;\" open=\"\"\u003e\n\u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003eMotorsport Use — Returns \u0026amp; Warranty\u003c\/summary\u003e\n\u003cdiv style=\"padding: 0 0 16px;\"\u003e\n\u003cp\u003eThis product is intended exclusively for \u003cstrong\u003emotorsport use\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAll sales are final: \u003cstrong\u003eno returns are accepted and no commercial warranty is provided\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis does not affect any statutory rights that cannot legally be excluded.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdiv style=\"margin-top: 20px; padding: 15px; border: 1px solid #dddddd;\"\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cstrong\u003eImportant Notice:\u003c\/strong\u003e This product is intended for \u003cstrong\u003emotorsport or off-road use only\u003c\/strong\u003e. It is not approved for use on public roads. Professional installation and calibration are strongly recommended.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 12px; color: #777777; margin-top: 16px;\"\u003e\u003cem\u003e Images are for illustrative purposes only and may not accurately represent the final product. Actual appearance, case, finish, connections or specific details may vary. \u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"CityBug - C1, 107, Aygo","offers":[{"title":"V1","offer_id":55242929865042,"sku":null,"price":699.0,"currency_code":"EUR","in_stock":true},{"title":"V2","offer_id":55242929897810,"sku":null,"price":699.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/5637\/8962\/files\/Imagem_ChatGPT_28_10_2026_11_12_35.png?v=1793186232"},{"product_id":"high-performance-final-drive-ratio-4-411-c1","title":"Citroën C1 High-Performance Final Drive Ratio 4.411 Citroën C1","description":"\u003cdiv class=\"aos-product-description\"\u003e\n\n  \u003cp\u003e\n    Upgrade the acceleration and drivetrain response of your\n    \u003cstrong\u003eCitroën C1 1.0 12V\u003c\/strong\u003e with this\n    \u003cstrong\u003eHigh-Performance 4.411 Final Drive\u003c\/strong\u003e,\n    designed for compatible vehicles equipped with the\n    \u003cstrong\u003e20TT manual gearbox\u003c\/strong\u003e.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    This \u003cstrong\u003eused and tested final drive gear set\u003c\/strong\u003e\n    replaces the standard 3.550 ratio with a shorter\n    \u003cstrong\u003e4.411 final drive\u003c\/strong\u003e, helping improve acceleration,\n    torque delivery and responsiveness for motorsport and performance applications.\n  \u003c\/p\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Product Overview\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cp\u003e\n        This \u003cstrong\u003eCitroën C1 4.411 Final Drive\u003c\/strong\u003e is designed\n        as a performance upgrade for compatible\n        \u003cstrong\u003e20TT manual gearboxes\u003c\/strong\u003e.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        By changing the standard final drive ratio from\n        \u003cstrong\u003e3.550 to 4.411\u003c\/strong\u003e, the overall gearing becomes shorter,\n        allowing the engine to move through the gears more quickly and\n        improving acceleration.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        This makes the setup particularly suitable for motorsport,\n        sprint, hill climb, circuit and other performance-focused applications\n        where rapid acceleration and drivetrain response are important.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Citroën C1 Compatibility\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Citroën\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e C1\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e 1.0 12V\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eModel Years:\u003c\/strong\u003e 2004–2015\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eGearbox:\u003c\/strong\u003e 20TT manual gearbox\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFinal Drive Ratio:\u003c\/strong\u003e 4.411\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\n        \u003cstrong\u003eCompatibility must be confirmed before ordering.\u003c\/strong\u003e\n        Verify that your Citroën C1 is equipped with the correct\n        \u003cstrong\u003e20TT manual gearbox\u003c\/strong\u003e.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        If you are unsure about compatibility, contact Art of Speed\n        with your vehicle and gearbox details before purchasing.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Technical Specifications\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePerformance Final Drive Ratio:\u003c\/strong\u003e 4.411\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eStandard Final Drive Ratio:\u003c\/strong\u003e 3.550\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eGearbox:\u003c\/strong\u003e 20TT manual gearbox\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eEngine Application:\u003c\/strong\u003e 1.0 12V\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used and tested\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Motorsport and performance driving\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\n        The shorter \u003cstrong\u003e4.411 ratio\u003c\/strong\u003e increases overall\n        torque multiplication at the driven wheels compared with the\n        standard 3.550 final drive.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        As a result, acceleration is improved, although engine RPM\n        at a given road speed will also increase and theoretical\n        maximum speed may be reduced.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Performance Benefits\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003eShorter 4.411 final drive ratio\u003c\/li\u003e\n        \u003cli\u003eImproved acceleration through the gears\u003c\/li\u003e\n        \u003cli\u003eStronger torque delivery at the wheels\u003c\/li\u003e\n        \u003cli\u003eImproved response from lower speeds\u003c\/li\u003e\n        \u003cli\u003eMore responsive drivetrain behaviour\u003c\/li\u003e\n        \u003cli\u003eSuitable for competition and performance-focused Citroën C1 builds\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\n        The shorter gearing is particularly beneficial in competition\n        environments involving frequent acceleration, technical sections\n        and repeated speed changes.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Motorsport Application\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cp\u003e\n        This 4.411 final drive is intended for motorsport and\n        performance-focused Citroën C1 applications.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        According to the supplied product specification, this ratio\n        has been approved for use in the\n        \u003cstrong\u003eCity Division of the Stock Cup racing series promoted by ANPAC\u003c\/strong\u003e.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        Motorsport regulations may change over time. Competitors should\n        always verify the current championship technical regulations\n        before purchasing or installing the component.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Condition \u0026amp; Quality\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cp\u003e\n        This is a \u003cstrong\u003eused component\u003c\/strong\u003e that has been\n        tested before being offered for sale.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        As a used transmission component, cosmetic marks,\n        surface wear or other signs of previous use may be present.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        The actual appearance and condition of the supplied component\n        may differ from the images shown on the product page.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Installation \u0026amp; Professional Fitment\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cp\u003e\n        \u003cstrong\u003eProfessional installation is strongly recommended.\u003c\/strong\u003e\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        Replacing the final drive requires gearbox disassembly and\n        correct installation of the transmission components.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        Installation should be carried out by an experienced gearbox\n        or motorsport transmission specialist.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        Bearings, clearances, preload and the general condition of\n        the gearbox should be inspected during installation to ensure\n        correct and reliable operation.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Frequently Asked Questions\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        Is this final drive compatible with the Citroën C1?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        It is intended for compatible\n        \u003cstrong\u003eCitroën C1 1.0 12V models from 2004 to 2015\u003c\/strong\u003e\n        equipped with the \u003cstrong\u003e20TT manual gearbox\u003c\/strong\u003e.\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        What is the final drive ratio?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        The upgraded final drive ratio is \u003cstrong\u003e4.411\u003c\/strong\u003e,\n        compared with the stated standard ratio of \u003cstrong\u003e3.550\u003c\/strong\u003e.\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        What does a 4.411 final drive improve?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        The shorter ratio increases torque multiplication at the wheels\n        and helps improve acceleration and drivetrain response.\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        Will the 4.411 ratio affect top speed?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        Yes. Shorter gearing generally increases engine RPM at a given\n        road speed and may reduce theoretical maximum speed compared\n        with the standard final drive.\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        Is this product new?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        No. This is a \u003cstrong\u003eused and tested final drive gear set\u003c\/strong\u003e.\n        Signs of previous use may be present.\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        Does it require professional installation?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        Yes. Installation by an experienced transmission or motorsport\n        gearbox specialist is strongly recommended.\n      \u003c\/p\u003e\n\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n  \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n    Motorsport Use — Returns \u0026amp; Warranty\n  \u003c\/summary\u003e\n\n  \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n    \u003cp\u003e\n      This product is intended exclusively for \u003cstrong\u003emotorsport use\u003c\/strong\u003e.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      All sales are final: \u003cstrong\u003eno returns are accepted and no commercial warranty is provided\u003c\/strong\u003e.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      This does not affect any statutory rights that cannot legally be excluded.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n  \u003cdiv style=\"margin-top: 20px; padding: 15px; border: 1px solid #dddddd;\"\u003e\n    \u003cp style=\"margin: 0;\"\u003e\n      \u003cstrong\u003eImportant:\u003c\/strong\u003e\n      This is a used performance transmission component.\n      Compatibility and gearbox condition should be confirmed before\n      installation. Professional fitment is strongly recommended.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cp style=\"font-size: 12px; color: #777777; margin-top: 16px;\"\u003e\n    \u003cem\u003e\n      Images are for illustrative purposes only and may not accurately\n      represent the specific product supplied or its actual condition.\n      Appearance, finish, wear marks and other visual details may vary.\n    \u003c\/em\u003e\n  \u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"CityBug - C1, 107, Aygo","offers":[{"title":"Default Title","offer_id":55089910055250,"sku":null,"price":875.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/5637\/8962\/files\/FinalDrive_2b173f07-b7b5-409e-9163-4f00cb6b5655.jpg?v=1741608330"},{"product_id":"hill-climb-racing-gear-kit-with-close-ratio-transmission-final-drive","title":"C1 Hill Climb Racing Gear Kit with Close-Ratio Transmission \u0026 Final Drive (Motorsport Use)","description":"\u003cdiv class=\"aos-product-description\"\u003e\n\n  \u003cp\u003e\n    Upgrade the transmission performance of your\n    \u003cstrong\u003eCitroën C1 1.0 1KR-FE\u003c\/strong\u003e with this\n    \u003cstrong\u003eHill Climb Performance Gear Kit with Final Drive\u003c\/strong\u003e,\n    developed specifically for compatible vehicles equipped with the\n    \u003cstrong\u003e20TT manual gearbox\u003c\/strong\u003e.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    Designed for hill climb, sprint and time attack competition,\n    this motorsport gear set combines\n    \u003cstrong\u003eclose-ratio gearing with a 4.417 final drive\u003c\/strong\u003e\n    to help improve acceleration, reduce RPM drop between gear changes\n    and keep the engine closer to its effective power range.\n  \u003c\/p\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Product Overview\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cp\u003e\n        This \u003cstrong\u003eCitroën C1 Hill Climb Gear Kit\u003c\/strong\u003e is designed\n        for motorsport applications using the compatible\n        \u003cstrong\u003e20TT manual gearbox\u003c\/strong\u003e and\n        \u003cstrong\u003e1KR-FE 1.0 engine\u003c\/strong\u003e.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        The kit includes a complete set of close-ratio gears together\n        with a dedicated \u003cstrong\u003e4.417 final drive\u003c\/strong\u003e.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        Compared with wider standard road-oriented gear ratios,\n        closer gear spacing helps reduce the drop in engine speed\n        after each shift, improving acceleration and allowing the\n        engine to remain closer to its useful power range.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        This transmission setup is particularly suitable for technical\n        competition environments with repeated acceleration, tight\n        corners and steep gradients.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Citroën C1 Compatibility\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Citroën\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e C1\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e 1.0 1KR-FE\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eGearbox:\u003c\/strong\u003e 20TT manual gearbox\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Close-ratio gear kit with final drive\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Motorsport competition\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\n        \u003cstrong\u003eCompatibility must be confirmed before ordering.\u003c\/strong\u003e\n        Verify that your Citroën C1 is equipped with the correct\n        \u003cstrong\u003e20TT manual gearbox\u003c\/strong\u003e.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        If you are unsure about fitment, contact Art of Speed with\n        your vehicle and gearbox details before placing your order.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Optimized Gear Ratios\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1st Gear:\u003c\/strong\u003e 2.790\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e2nd Gear:\u003c\/strong\u003e 1.940\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e3rd Gear:\u003c\/strong\u003e 1.470\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e4th Gear:\u003c\/strong\u003e 1.210\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e5th Gear:\u003c\/strong\u003e 1.070\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFinal Drive Ratio:\u003c\/strong\u003e 4.417\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\n        These ratios are designed to provide closer spacing between gears,\n        helping the engine remain within a more effective operating range\n        during hard acceleration.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        The \u003cstrong\u003e4.417 final drive\u003c\/strong\u003e further shortens the overall\n        gearing, supporting stronger acceleration on steep gradients\n        and out of slower corners.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Key Features\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003eDeveloped for compatible Citroën C1 20TT gearboxes\u003c\/li\u003e\n        \u003cli\u003eCompatible with 1.0 1KR-FE applications\u003c\/li\u003e\n        \u003cli\u003eComplete close-ratio gear set\u003c\/li\u003e\n        \u003cli\u003eIncludes 4.417 final drive\u003c\/li\u003e\n        \u003cli\u003eDesigned for stronger acceleration\u003c\/li\u003e\n        \u003cli\u003eReduced RPM drop between gear changes\u003c\/li\u003e\n        \u003cli\u003ePrecision-machined motorsport components\u003c\/li\u003e\n        \u003cli\u003eDesigned for high-RPM competition use\u003c\/li\u003e\n        \u003cli\u003eSuitable for hill climb, sprint and time attack racing\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Hill Climb Performance\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cp\u003e\n        Hill climb competition places particular demands on a transmission,\n        with steep gradients, frequent gear changes and repeated acceleration\n        from relatively low speeds.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        Close-ratio gearing reduces the difference between consecutive\n        gear ratios, helping to minimise RPM loss when changing gear.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        Combined with the shorter 4.417 final drive, this setup is designed\n        to favour acceleration and responsiveness over maximum theoretical\n        top speed.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        The result is a transmission configuration particularly suited\n        to technical hill climb, sprint and time attack applications.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Installation \u0026amp; Professional Fitment\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cp\u003e\n        \u003cstrong\u003eProfessional installation is required.\u003c\/strong\u003e\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        This gear kit must be installed by an experienced motorsport\n        gearbox or transmission specialist.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        Correct assembly, bearing setup, preload, clearances and gearbox\n        inspection are essential for reliable operation.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        The condition of bearings, synchronisers and other gearbox\n        components should be inspected during installation and replaced\n        where necessary.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Production \u0026amp; Delivery Time\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cp\u003e\n        This gear kit is \u003cstrong\u003emade to order\u003c\/strong\u003e.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        \u003cstrong\u003e\n          Estimated production and delivery time:\n          approximately 7 to 8 weeks after purchase.\n        \u003c\/strong\u003e\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        Production times may vary depending on manufacturing schedules\n        and component availability.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Frequently Asked Questions\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        Is this gear kit designed for the Citroën C1?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        Yes. It is intended for compatible\n        \u003cstrong\u003eCitroën C1 1.0 1KR-FE applications\u003c\/strong\u003e\n        equipped with the \u003cstrong\u003e20TT manual gearbox\u003c\/strong\u003e.\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        Does the kit include the final drive?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        Yes. The kit includes the complete close-ratio gear set\n        together with a \u003cstrong\u003e4.417 final drive\u003c\/strong\u003e.\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        What is the advantage of close-ratio gearing?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        Close-ratio gearing reduces the RPM drop between consecutive\n        gears, helping the engine stay closer to its effective power\n        range during acceleration.\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        Is this kit suitable for hill climb racing?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        Yes. The gear ratios and final drive are specifically focused\n        on acceleration-oriented motorsport applications such as\n        hill climb, sprint and time attack.\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        Does the shorter gearing affect top speed?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        Yes. Shorter gearing generally improves acceleration but can\n        increase engine RPM at a given road speed and reduce theoretical\n        maximum speed.\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        Does professional installation matter?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        Yes. Correct gearbox assembly and setup are essential.\n        Installation should be carried out by an experienced motorsport\n        transmission specialist.\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        How long does production take?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        This product is made to order, with an estimated production\n        and delivery time of approximately\n        \u003cstrong\u003e7 to 8 weeks\u003c\/strong\u003e.\n      \u003c\/p\u003e\n\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n  \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n    Motorsport Use — Returns \u0026amp; Warranty\n  \u003c\/summary\u003e\n\n  \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n    \u003cp\u003e\n      This product is intended exclusively for \u003cstrong\u003emotorsport use\u003c\/strong\u003e.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      All sales are final: \u003cstrong\u003eno returns are accepted and no commercial warranty is provided\u003c\/strong\u003e.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      This does not affect any statutory rights that cannot legally be excluded.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n  \u003cdiv style=\"margin-top: 20px; padding: 15px; border: 1px solid #dddddd;\"\u003e\n    \u003cp style=\"margin: 0;\"\u003e\n      \u003cstrong\u003eFor Motorsport Use Only:\u003c\/strong\u003e\n      This product is intended for off-highway competition use and\n      is not approved for use on public roads. The user is responsible\n      for compliance with applicable local laws, technical regulations\n      and competition requirements.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cp style=\"font-size: 12px; color: #777777; margin-top: 16px;\"\u003e\n    \u003cem\u003e\n      Images are for illustrative purposes only and may not accurately\n      represent the final product supplied. Actual appearance, finish,\n      dimensions and specific details may vary.\n    \u003c\/em\u003e\n  \u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"CityBug - C1, 107, Aygo","offers":[{"title":"Default Title","offer_id":55090460754258,"sku":null,"price":4500.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/5637\/8962\/files\/Hill_Climb_20TT_Gearbox.jpg?v=1792575246"},{"product_id":"modified-intake-manifold-with-50mm-throttle-body","title":"C1 Modified Intake Manifold with 50mm Throttle Body for 1KR-FE Engine's","description":"\u003cdiv class=\"aos-product-description\"\u003e\n\n  \u003cp\u003e\n    Improve the airflow potential of your\n    \u003cstrong\u003eCitroën C1 1.0 12V with the 1KR-FE engine\u003c\/strong\u003e\n    with this \u003cstrong\u003eModified Intake Manifold with 50mm Throttle Body\u003c\/strong\u003e.\n    Designed for performance-focused applications, this upgraded intake setup\n    increases intake capacity compared with the standard configuration and is\n    intended for modified, track and motorsport builds.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    To obtain the correct performance from this upgrade,\n    \u003cstrong\u003eECU calibration is required\u003c\/strong\u003e. For best integration,\n    we recommend pairing the manifold with a compatible programmable ECU.\n  \u003c\/p\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Product Overview\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cp\u003e\n        This \u003cstrong\u003eCitroën C1 modified intake manifold\u003c\/strong\u003e has been\n        adapted to work with a \u003cstrong\u003e50mm throttle body\u003c\/strong\u003e,\n        providing increased airflow capacity for compatible\n        \u003cstrong\u003e1KR-FE engine applications\u003c\/strong\u003e.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        The larger throttle body and modified intake configuration are intended\n        to support performance engine setups where increased airflow is required.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        This product is especially suited to track cars, competition builds\n        and modified Citroën C1 projects using a correctly calibrated\n        engine management system.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Citroën C1 Compatibility\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Citroën\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e C1\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e 1.0 12V 1KR-FE\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eThrottle Body Diameter:\u003c\/strong\u003e 50mm\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Modified intake manifold with throttle body\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\n        \u003cstrong\u003eCompatibility should be confirmed before ordering.\u003c\/strong\u003e\n        Engine configuration, sensors, wiring and throttle arrangements may\n        vary depending on the vehicle and modifications already installed.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        If you are unsure about compatibility, contact Art of Speed with\n        your vehicle details and current engine setup before purchasing.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Key Features\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\u003cstrong\u003eModified intake manifold for 1KR-FE applications\u003c\/strong\u003e\u003c\/li\u003e\n        \u003cli\u003e\u003cstrong\u003e50mm throttle body\u003c\/strong\u003e\u003c\/li\u003e\n        \u003cli\u003eIncreased intake airflow capacity\u003c\/li\u003e\n        \u003cli\u003eDesigned for performance-focused engine setups\u003c\/li\u003e\n        \u003cli\u003eSuitable for track, motorsport and modified Citroën C1 builds\u003c\/li\u003e\n        \u003cli\u003eDesigned to work with appropriate ECU calibration\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Performance \u0026amp; Airflow\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cp\u003e\n        Increasing throttle body diameter and modifying the intake manifold\n        can allow a greater volume of air to enter the engine compared with\n        the standard intake configuration.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        On a correctly prepared engine, this can support improved throttle\n        response and increased performance potential when combined with\n        suitable engine modifications and correct ECU calibration.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        Actual results depend on the complete engine specification,\n        exhaust system, intake configuration, fuel system and calibration.\n        Power gains are therefore not guaranteed by the intake manifold alone.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      ECU Tuning Required\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cp\u003e\n        \u003cstrong\u003eECU tuning is required after installation.\u003c\/strong\u003e\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        The increased airflow characteristics of the modified intake system\n        can alter the engine's fuelling and load requirements. Correct\n        calibration is important for performance, drivability and engine safety.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        For maximum tuning flexibility, we recommend using a\n        \u003cstrong\u003ecompatible programmable or standalone ECU\u003c\/strong\u003e.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Installation \u0026amp; Important Information\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n      \u003cp\u003e\n        Professional installation by an experienced technician or\n        motorsport specialist is recommended.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        Before installation, verify all intake connections, sensors,\n        throttle operation and supporting components.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        Additional modifications or components may be required depending\n        on the vehicle's existing engine management and intake configuration.\n      \u003c\/p\u003e\n\n      \u003cp\u003e\n        After installation, the engine should be professionally calibrated\n        before performance use.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n    \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n      Frequently Asked Questions\n    \u003c\/summary\u003e\n\n    \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        Is this intake manifold designed for the Citroën C1 1KR-FE?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        Yes. This version is intended for compatible\n        \u003cstrong\u003eCitroën C1 1.0 12V applications using the 1KR-FE engine\u003c\/strong\u003e.\n        Compatibility should still be checked against the vehicle's\n        specific configuration.\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        What size is the throttle body?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        The intake manifold is supplied with a\n        \u003cstrong\u003e50mm throttle body\u003c\/strong\u003e.\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        Will this intake manifold increase power?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        It increases airflow capacity and can support higher engine performance,\n        but actual power gains depend on the complete engine setup and ECU calibration.\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        Does the vehicle need to be tuned after installation?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        Yes. ECU calibration is required to correctly match the engine\n        management to the modified intake system.\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"font-size: 1em; margin: 16px 0 8px;\"\u003e\n        Which ECU is recommended?\n      \u003c\/h3\u003e\n\n      \u003cp\u003e\n        A compatible programmable or standalone ECU is recommended\n        to provide the calibration flexibility required for this upgrade.\n      \u003c\/p\u003e\n\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003cdetails style=\"border-bottom: 1px solid #dddddd;\"\u003e\n  \u003csummary style=\"padding: 16px 0; cursor: pointer; font-weight: bold;\"\u003e\n    Motorsport Use — Returns \u0026amp; Warranty\n  \u003c\/summary\u003e\n\n  \u003cdiv style=\"padding: 0 0 16px;\"\u003e\n    \u003cp\u003e\n      This product is intended exclusively for \u003cstrong\u003emotorsport use\u003c\/strong\u003e.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      All sales are final: \u003cstrong\u003eno returns are accepted and no commercial warranty is provided\u003c\/strong\u003e.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      This does not affect any statutory rights that cannot legally be excluded.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n  \u003cdiv style=\"margin-top: 20px; padding: 15px; border: 1px solid #dddddd;\"\u003e\n    \u003cp style=\"margin: 0;\"\u003e\n      \u003cstrong\u003eImportant:\u003c\/strong\u003e\n      Professional installation and ECU calibration are recommended.\n      Performance results depend on the complete engine specification\n      and supporting modifications.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cp style=\"font-size: 12px; color: #777777; margin-top: 16px;\"\u003e\n    \u003cem\u003e\n      Images are for illustrative purposes only and may not accurately\n      represent the final product supplied. Actual appearance, finish,\n      dimensions and specific details may vary.\n    \u003c\/em\u003e\n  \u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"CityBug - C1, 107, Aygo","offers":[{"title":"Default Title","offer_id":55090517606738,"sku":null,"price":440.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/5637\/8962\/files\/WhatsAppImage2025-03-10at14.13.49_d43ba01c.jpg?v=1741616637"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/5637\/8962\/collections\/citroen_logo.png?v=1737979871","url":"https:\/\/shop.artofspeed.pt\/collections\/citroen.oembed","provider":"Art of Speed","version":"1.0","type":"link"}