ACT 2004-2020 Subaru WRX STI Mod-Twin HD Street Clutch Kit

ACT Mod-Twin HD Street Clutch Kit for 2004-2020 Subaru WRX STI Upgrade your AWD performance with the ACT Mod-Twin HD Street Kit—engineered for high-powered 2004-2020 Subaru WRX STI applications that demand strong, repeatable engagement and fast, reliable shifts. Key Features Balanced pedal feel: Smooth yet positive engagement for street-driven performance. Dual organic friction surfaces: Twice the friction area for improved torque capacity and consistent bite. Mono-Drive chrome-moly hub: One-piece, heat-treated hub with continuous spline for increased strength and extended input shaft life. Four-stage spring heat treatment: Diaphragm spring undergoes exclusive processing for durability and fatigue resistance. CNC-machined flywheel: Dynamically balanced for reduced vibration and optimized drivetrain response. Modular, rebuildable design: Most components available separately for cost-effective service and long-term value. What's Included CNC-machined flywheel (dynamically balanced) Pressure plate cover and diaphragm spring Face and puck-style ceramic friction plates Steel-backed friction plates with high-quality organic material Rigid Mono-Drive hub, floater, and patented Monoloc Collar Release bearing, alignment tool, and pilot bearing (if needed) Why choose ACT Mod-Twin? Designed for high horsepower 2004-2020 Subaru WRX STI applications, this kit offers superior heat capacity, stable friction coefficients, quicker shifts, and trouble-free service life—ideal for street performance drivers who want race-proven reliability.