ACT Mod Twin 225 Heavy Duty Sprung Street Twin Disk Clutch Kit 2004-2021 STI
DESCRIPTION
The ACT Mod Twin 225 Heavy Duty Sprung Street Twin Disk Clutch Kit for the 2004-2021 STI is built for high-powered AWD street and street/strip applications that need strong torque capacity with smooth drivability. This modular twin disc system combines dual organic friction surfaces with a sprung Mono-Drive hub to deliver controlled engagement, light pedal effort, and long-term durability.
A four-stage heat-treated diaphragm provides consistent pedal feel, while steel-backed organic friction plates offer stable friction, good heat capacity, and extended service life. The sprung hub helps reduce driveline shock and protect the input shaft, making this a reliable option for powerful street-driven builds.
WHY?
This clutch is ideal for STI owners running higher power who still want a street-friendly driving experience. The twin organic discs provide strong holding power without harsh engagement, while the sprung hub and balanced design improve smoothness and drivetrain longevity during daily driving and spirited use.
FEATURES:
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Soft and progressive engagement with light pedal effort
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OE to mild transmission gear noise
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Dual organic friction surfaces for high torque capacity
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Sprung Mono-Drive hub to reduce driveline shock
COMPATIBILITY
2004-2021 STI
SPECIFICATIONS
| Item Description | ACT Mod-Twin 225 Heavy Duty Sprung Street Clutch Kit |
|---|---|
| Product Weight (lbs.) | 28.1 |
| Torque Capacity (ft/lbs.) | 700Ā |
| Torque Capacity Over OE | 97% |
| Disc Material | Organic |
| Clutch Disc Diameter (Inches) | 8.8 |
| Clutch Disc Diameter (Millimeters) | 225 |
| Input Shaft Diameter (inches) | 1 |
| Pressure Plate Type | Heavy Duty |
| Warranty | 12 Months (view details) |
| SFI | 1.2 |
| UPC | 00842385025281 |