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The ACT Mod-Twin 225 XX rigid race kit for 2004–2020 WRX STI applications targets very high torque capacity and repeatable launches. It uses dual puck-style ceramic friction plates with a heat-treated Mono-Drive hub and a dynamically balanced flywheel for strength under extreme loads. Rated to 1340 ft·lbs torque, fully rebuildable, includes diaphragm spring, puck-style plates and supporting hardware; not for street use.
ACT 04-20 WRX STI Mod Twin XX Race Kit Unsprung Hub Torque Cap 1340ft/lbs Not For Street Use
