Subaru STI Mod Twin HD Clutch Kit (Rigid Hub / 6-Pad Discs) by ACT T1R-S07 Mod twin race kit offers twice the number of disc surfaces for better wear, heat capacity and long life compared to single disc kits. These kits use a proprietary Positive Lift Floater System design, which results in quiet operation with no floater rattle and no posts to wear. ACT twin disc kits endure an exclusive four-stage, heat treating process performed on all diaphragms. The ACT twin disc features the ability to adjust for disc wear and provides equal disengagement for discs. ACTs 6-pad rigid race discs are made with high quality, ceramic friction materials. The chrome-moly hub is heat-treated for strength and durability. The lightweight, rigid design allows for quicker shifts and trouble-free service. All ACT twin disc kits include a CNC-machined and dynamically balanced flywheel to ensure trouble-free installation and operation. ACT twin disc kits include a pressure plate, two discs, a floater, flywheel and alignment tool. Some kits may include a pilot bearing and release bearing. Features Light pedal effort, quicker shifts, aggressive engagement, mild to moderate gear rattle Doubles the number of disc surfaces for better wear, heat capacity and longer life, extended by ACT\’s exclusive diaphragm design Carefully engineered, precisely assembled, accurately balanced, uses select ceramic friction materials for high heat tolerance and maximum performance Recommended for race use only 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability Please Note: The image used is generic. The clutch kit you receive may not be exactly what is shown. Applications 2004 – 2021 Subaru STI What\’s In The Box? 1 – Mod Twin HD Race Clutch Kit Warranty Manufacturer Standard Warranty