{"product_id":"stage-4-clutch-kit-23-spline-11-inch","title":"Stage 4 Clutch Kit 23-Spline 11-Inch","description":"The SPEC Stage 4 Clutch Kit (SF504-9) is engineered for the demands of track-only Mustangs, providing the clutch response necessary for consistent racing performance. This kit features a 4-puck configuration with a carbon-graphite friction material, an 11-inch disc diameter, and a 23-spline count. It is designed to handle an impressive 755 ft-lbs of torque, making it suitable for heavily modified vehicles.\n\nConstructed for rigorous competitive driving, the Stage 4 clutch boasts an 8-rivet, solid hub design that ensures aggressive engagement and disengagement. The carbon-graphite friction material is specifically chosen for its ability to withstand extreme temperatures encountered during racing, preventing clutch failure. The high clamp pressure plate contributes to precise and aggressive engagement.\n\nThis SPEC clutch kit is SFI-approved, confirming its suitability for motorsports and its ability to endure the rigors of competitive driving. It comes with a 120-day warranty against defects in materials and workmanship. The kit includes the clutch, a bearing, and a tool kit. Please note that a new flywheel is required for installation, and it is not included.\n\nThe SPEC SF504-9 clutch kit is compatible with all 2011 to 2017 Ford Mustang GT models, including Boss 302 variants built after March 2011. Installation requires mechanical expertise or professional assistance, with an estimated installation time of approximately 4 hours. Buyers should be aware that this clutch is not street-friendly, even in its 6-puck configuration, and may exhibit touchy engagement due to the lack of springs.","brand":"SPEC","offers":[{"title":"Default Title","offer_id":52689393418552,"sku":"SF504-9","price":413.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687682193.webp?v=1784906196","url":"https:\/\/store.motormia.co\/products\/stage-4-clutch-kit-23-spline-11-inch","provider":"MOTORMIA","version":"1.0","type":"link"}