Advanced Clutch Mod-Twin 225 XX Sprung Race for Subaru Impreza WRX STI (T3R-S05) PPE_CeramicCoating_2 Quality: Spring retainers feature heat-treated

Quality: Spring retainers feature heat-treated wraparound spring windows that provide support and reduce stress concentrations that are common causes for failure

the complete setup is bolt-on

AA1-HDSD kit features ACT's most popular Heavy Duty pressure plate

ZM1-XTSS kit features an Xtreme pressure plate for the most demanding driver

Light to moderate pedal effort

Advanced Clutch Mod-Twin 225 XX Sprung Race for Subaru Impreza WRX STI (T3R-S05) PPE_CeramicCoating_2 Quality: Spring retainers feature heat-treatedT3R S05 Mod Twin 225 XX Sprung Race Kit performs aggressive launches and smoother shifting in high powered AWD by combining twice the ceramic friction surfaces with an ultra durable Mono Drive sprung hub assembly in a completely modular design. Each diaphragm spring endures an exclusive four stage heat treating process providing a consistent pedal feel requiring moderate effort. Puck style Friction Plates with high quality ceramic friction materials