{"product_id":"exedy-stage-1-organic-clutch-kit-2004-2014-subaru-impreza-wrx-sti-h4-15803","title":"EXEDY Stage 1 Organic Clutch Kit – 2004–2014 Subaru Impreza WRX STI H4","description":"\u003cp\u003eFor 2004–2014 Subaru Impreza WRX STI H4, the \u003cstrong\u003eEXEDY Stage 1 Organic Clutch Kit – 2004–2014 Subaru Impreza WRX STI H4\u003c\/strong\u003e brings EXEDY's application-specific clutch engineering into one clearly organized product page for enthusiast street, autocross, HPDE, and modified performance builds.\u003c\/p\u003e\u003ch3\u003eA Century of Clutch Engineering\u003c\/h3\u003e\u003cp\u003eWith roots in Japan dating to 1923, EXEDY has spent generations engineering clutches and powertrain components for both vehicle manufacturers and the aftermarket. That OEM foundation carries into its performance range, where organic, cerametallic, chromoly, and multi-plate technologies are developed for increasingly demanding street and competition applications.\u003c\/p\u003e\u003ch3\u003eWhy This Part Fits the Build\u003c\/h3\u003e\u003cp\u003eEXEDY's performance single- and multi-plate systems are intended to raise torque capacity and heat tolerance while matching the engagement characteristics to the car's intended use. Stage 1 uses an organic friction strategy for the most street-friendly behavior; Stage 2 moves to cerametallic friction for harder use; Hyper systems add dedicated flywheel and multi-plate architecture for substantially higher-output builds.\u003c\/p\u003e\u003cp\u003eChoose the least aggressive configuration that comfortably covers the engine's torque and heat load. That approach normally gives the best balance of drivability, service life, transmission friendliness, and track durability.\u003c\/p\u003e\u003ch3\u003eConfiguration\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEXEDY Part Number:\u003c\/strong\u003e 15803\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Stage 1 Organic Clutch Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction \/ Character:\u003c\/strong\u003e Application-specific EXEDY configuration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTorque Rating:\u003c\/strong\u003e Application-specific \/ verify EXEDY rating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest Suited For:\u003c\/strong\u003e Use where this exact EXEDY configuration and fitment are required\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSelection Notes\u003c\/h3\u003e\u003cp\u003eFor 2004–2014 Subaru Impreza WRX STI H4, this configuration makes the most sense when its intended duty matches the vehicle's actual power and use. Avoid overspecifying clutch aggressiveness: the best setup is the one that maintains the needed torque reserve while preserving usable modulation and protecting the rest of the driveline.\u003c\/p\u003e\u003ch3\u003eTechnical Overview\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClamp Load:\u003c\/strong\u003e Stage 1\/2 covers are designed around roughly 40% higher clamping load than the genuine part\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePedal Effort:\u003c\/strong\u003e Typical Stage 1\/2 increase is approximately 20–35%, application dependent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlywheel Compatibility:\u003c\/strong\u003e Stage 1\/2 generally use the OEM flywheel unless noted; Hyper systems include\/require their dedicated flywheel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e EXEDY Stage 1, Stage 2 and Lightweight Flywheel products are SFI 1.1 certified\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle Application:\u003c\/strong\u003e 2004–2014 Subaru Impreza WRX STI H4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEXEDY SKU:\u003c\/strong\u003e 15803\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFitment note:\u003c\/strong\u003e Confirm the vehicle's engine\/transmission combination and the clutch or flywheel currently installed before ordering. This is especially important on cars with prior single-mass conversions, transmission swaps, or existing EXEDY Hyper hardware.\u003c\/p\u003e","brand":"EXEDY","offers":[{"title":"Default Title","offer_id":50131462291706,"sku":"EXE15803","price":562.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0325\/6352\/7739\/files\/932fb300ab65d8e2d52374179910c56e.jpg?v=1745367689","url":"https:\/\/lgcracing.com\/products\/exedy-stage-1-organic-clutch-kit-2004-2014-subaru-impreza-wrx-sti-h4-15803","provider":"Legacy Racing","version":"1.0","type":"link"}