{"product_id":"xclutch-15-21-subaru-wrx-sti-base-2-5l-stage-1-sprung-organic-clutch-kit","title":"XClutch Stage 1 Sprung Organic Clutch Kit - 2015-2021 Subaru WRX STi 2.5L","description":"\u003ch3\u003eXClutch Stage 1 Sprung Organic Clutch Kit - 2015-2021 Subaru WRX STi 2.5L\u003c\/h3\u003e\u003cp\u003eUpgrade your WRX STi with the XClutch Stage 1 sprung organic clutch kit - the perfect balance between performance and drivability. Engineered specifically for the 2015-2021 Subaru WRX STi, this clutch delivers substantial increases in torque capacity and performance while maintaining smooth, street-friendly engagement for daily driving and spirited weekend use.\u003c\/p\u003e\u003ch4\u003eKey Features:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eStage 1 performance upgrade - ideal for street and light track use\u003c\/li\u003e\n\u003cli\u003eSprung hub design with dampening for smooth engagement\u003c\/li\u003e\n\u003cli\u003eOrganic friction material for OEM-like drivability\u003c\/li\u003e\n\u003cli\u003eIncreased clamping force for higher torque capacity\u003c\/li\u003e\n\u003cli\u003eAdvanced pressure plate design for positive pedal feel\u003c\/li\u003e\n\u003cli\u003eIncludes pressure plate, clutch disc, and release bearing\u003c\/li\u003e\n\u003cli\u003eDirect replacement for factory clutch\u003c\/li\u003e\n\u003cli\u003eXClutch quality engineering with 30+ years of experience\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003ePerformance Benefits:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncreased Torque Capacity:\u003c\/strong\u003e Handles more power than stock clutch for modified engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmooth Engagement:\u003c\/strong\u003e Sprung hub and organic material provide street-friendly drivability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved Pedal Feel:\u003c\/strong\u003e Advanced pressure plate design delivers positive, consistent pedal feel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily Driver Friendly:\u003c\/strong\u003e Maintains comfort for commuting and daily use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrack Capable:\u003c\/strong\u003e Handles spirited driving and occasional track days\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong Service Life:\u003c\/strong\u003e Premium materials ensure extended clutch life\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecifications:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e XClutch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e XKSU24001-1A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage:\u003c\/strong\u003e Stage 1 (street\/track)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisc Type:\u003c\/strong\u003e Sprung organic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHub Design:\u003c\/strong\u003e Sprung with dampening\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFriction Material:\u003c\/strong\u003e Organic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTorque Capacity:\u003c\/strong\u003e Increased over stock (supports mild to moderate modifications)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 20 lbs (complete kit)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarcode:\u003c\/strong\u003e XKSU24001-1A\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFitment Information:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eCompatible Vehicles:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e2015-2021 Subaru WRX STi (EJ257)\u003c\/li\u003e\n\u003cli\u003e2018-2021 Subaru WRX STi Type RA (EJ257)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNote:\u003c\/strong\u003e Designed specifically for 2015+ WRX STi with 2.5L EJ257 engine\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eWhat's Included:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eXClutch Stage 1 pressure plate\u003c\/li\u003e\n\u003cli\u003eSprung organic clutch disc\u003c\/li\u003e\n\u003cli\u003eRelease bearing (throw-out bearing)\u003c\/li\u003e\n\u003cli\u003eAlignment tool\u003c\/li\u003e\n\u003cli\u003eInstallation instructions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eInstallation Notes:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eProfessional installation strongly recommended\u003c\/li\u003e\n\u003cli\u003eTransmission removal required for installation\u003c\/li\u003e\n\u003cli\u003eInstallation time: approximately 6-8 hours\u003c\/li\u003e\n\u003cli\u003eFlywheel should be resurfaced or replaced during installation\u003c\/li\u003e\n\u003cli\u003eUse new flywheel bolts (not included - use OEM or ARP)\u003c\/li\u003e\n\u003cli\u003eTorque all fasteners to Subaru specifications\u003c\/li\u003e\n\u003cli\u003eBreak-in period: 500-1,000 miles of moderate driving required\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStage 1 Performance Level:\u003c\/h4\u003e\u003cp\u003eXClutch Stage 1 clutches are designed for street-driven vehicles with mild to moderate performance modifications. This stage offers increased torque capacity over stock while maintaining smooth, progressive engagement similar to the factory clutch. It's the ideal upgrade for WRX STi owners running bolt-on modifications like intake, exhaust, and ECU tuning who want improved clutch performance without sacrificing daily drivability.\u003c\/p\u003e\u003ch4\u003eSprung Hub Design:\u003c\/h4\u003e\u003cp\u003eThe sprung hub design incorporates dampening springs that absorb drivetrain shock and vibration, resulting in smooth engagement and reduced transmission wear. This makes the clutch feel similar to the factory unit during normal driving while providing the increased torque capacity needed for modified engines. The sprung design is ideal for street use where comfort and drivability are priorities.\u003c\/p\u003e\u003ch4\u003eOrganic Friction Material:\u003c\/h4\u003e\u003cp\u003eXClutch uses premium organic friction material that provides smooth, progressive engagement similar to the factory clutch. Organic material offers excellent modulation and pedal feel, making it easy to drive in traffic and during daily commuting. While ceramic clutches offer higher torque capacity, organic material is the preferred choice for street-driven vehicles where drivability is important.\u003c\/p\u003e\u003ch4\u003eWhy XClutch?\u003c\/h4\u003e\u003cp\u003eXClutch is an Australian engineering company with over 30 years of clutch development experience. Their Stage 1 clutches are designed using advanced pressure plate geometry and premium friction materials to deliver the ideal balance between performance and drivability. With one of the world's most advanced clutch testing facilities and extensive in-house vehicle testing, XClutch delivers proven performance and reliability.\u003c\/p\u003e\u003ch4\u003eBreak-In Procedure:\u003c\/h4\u003e\u003cp\u003eProper break-in is critical for clutch longevity and performance. For the first 500-1,000 miles, avoid aggressive launches, heavy loads, and sustained high-RPM clutch slip. Use moderate throttle inputs and allow the friction material to properly mate with the flywheel surface. After break-in, the clutch will provide maximum performance and service life.\u003c\/p\u003e\u003ch4\u003eWhen to Choose Stage 1:\u003c\/h4\u003e\u003cp\u003eStage 1 clutches are ideal for WRX STi owners with mild to moderate modifications including intake, exhaust, downpipe, and ECU tuning. If you're running stock or near-stock power levels with bolt-on modifications and want improved clutch performance without sacrificing daily drivability, Stage 1 is the perfect choice. For heavily modified engines or big turbo builds, consider XClutch's Stage 2 or twin-disc options.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePerfect For:\u003c\/strong\u003e Daily-driven WRX STi with bolt-on modifications, weekend warriors, occasional track day participants, or anyone seeking improved clutch performance with OEM-like drivability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePro Tip:\u003c\/strong\u003e When installing a new clutch, it's the perfect time to resurface or replace your flywheel. Consider pairing this clutch with an XClutch chromoly flywheel for improved throttle response.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRecommended For:\u003c\/strong\u003e Stock to Stage 2 tuned WRX STi with bolt-on modifications (intake, exhaust, downpipe, tune).\u003c\/p\u003e\u003cp\u003eUpgrade your Subaru WRX STi with XClutch's Stage 1 clutch kit - engineered for performance, designed for daily driving.\u003c\/p\u003e","brand":"XCLUTCH","offers":[{"title":"Default Title","offer_id":46854669435047,"sku":"XCLXKSU24001-1A","price":919.62,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/8344\/1063\/files\/c08bb26298d40517a40a6a0b34bf9c85.jpg?v=1750699156","url":"https:\/\/www.straightsiximports.com\/products\/xclutch-15-21-subaru-wrx-sti-base-2-5l-stage-1-sprung-organic-clutch-kit","provider":"Straight Six Imports","version":"1.0","type":"link"}