Compatible: (2.5L)
2004 - 2021 Subaru WRX STI
T3R-S07 Mod-Twin 225 XX Rigid Race Kit tackles aggressive launches and rapid shifting of high powered AWD’s by combining twice the ceramic friction surfaces with a no-nonsense solid Mono-Drive hub 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 deliver high friction coefficient, superior heat capacity, and long clutch life. These Friction Plates uniformly transfer torque to a Mono-Drive chrome-moly hub which is heat treated for strength and durability extending input shaft life with one continuous spline. The lightweight, rigid design allows for quicker shifts and trouble-free service. This kit includes a CNC-machined and dynamically balanced flywheel, pressure plate cover, diaphragm spring, face, puck-style ceramic friction plates, rigid Mono-Drive hub, floater, patented Monoloc Collar, release bearing, alignment tool and pilot bearing (if needed). Mod-Twin clutches are fully rebuildable and most components can be ordered separately.
| Feel | Predictable aggressive engagement, increased pedal effort, quick shifting, possible start-off judder with mild to moderate transmission gear noise |
|---|---|
| Life | Forged Aluminum Cover, Mono-drive hub, exclusive diaphragm, premium friction materials, and hardened wear points ensure this long-life twin performs and survives under the most demanding conditions |
| Quality | Delivers maximum performance and high heat tolerance by combining robust design, strategic features, choice materials, and close tolerances |
| Recommended Use | Drag, Road or Rally Racing |
| ACT Difference | Applying tactical engineering to the MOD-TWIN, ACT presents unique solutions to common tradeoffs found on twin disc clutches, resulting in an ultra-durable, customer serviceable, long-lasting clutch with very high torque capacity. All are 100% clamp load tested, balanced and SFI certified |
Specifications
| Item Description | Mod-Twin 225 XX Rigid Race |
|---|---|
| Product Weight (lbs.) | 51.6 |
| Torque Capacity (ft/lbs.) | 1340 |
| Torque Capacity Over OE | 275% |
| Disc Material | Ceramic |
| Clutch Disc Diameter (Inches) | 8.8 |
| Clutch Disc Diameter (Millimeters) | 225 |
| Input Shaft Diameter (inches) | 1 |
| Warranty | 12 Months |
| SFI | 1.2 |
Install Guide:
Warranty: