About this product
DESCRIPTION
The ACT Mod Twin 225 Heavy Duty Sprung Race Twin Disk Clutch Kit for the 2004-2021 STI is engineered for high-powered AWD applications that require aggressive launches and quick, consistent shifts. This modular twin disc system combines dual ceramic friction surfaces with a sprung Mono-Drive hub for very high torque capacity while helping reduce driveline shock and extend input shaft life.
A four-stage heat-treated diaphragm ensures a light, consistent pedal feel, and puck-style ceramic friction plates provide high friction and excellent heat resistance for race conditions. The kit includes a CNC-machined, dynamically balanced flywheel and is fully rebuildable for long-term performance.
WHY?
This clutch is ideal for STI owners competing in drag, road, or rally racing who need strong holding power and fast engagement. The sprung hub and ceramic twin discs deliver aggressive, predictable shifts while protecting drivetrain components under repeated high-load launches.
FEATURES:
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Predictable aggressive engagement with light pedal effort
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Dual ceramic friction surfaces for very high torque capacity
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Sprung Mono-Drive hub to reduce driveline shock
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CNC-machined, dynamically balanced flywheel
COMPATIBILITY
2004-2021 STI
SPECIFICATIONS
Description supplied by WRXDaily through its current Shopify listing. Product, performance, and health claims are the seller’s and have not been independently verified by StorkScout.
