ACT Mod-Twin 225 XX Sprung Race Clutch Kit - 2004-2021 Subaru STI
ACT Mod-Twin 225 XX Sprung Race Clutch Kit - 2004-2021 Subaru STI
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ACTT3R-S05
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ACTT3R-S05
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ACTT3R-S05
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ACTT3R-S05
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ACTT3R-S05
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ACTT3R-S05
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ACTT3R-S05
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ACTT3R-S05
ACT
ACT Mod-Twin 225 XX Sprung Race Clutch Kit - 2004-2021 Subaru STI
ACT Mod-Twin 225 XX Sprung Race Clutch Kit - 2004-2021 Subaru STI
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HIGHLIGHTS:
- Torque rating of over 1300 ft/lbs
- Designed to sustain the abuse of road racing, drag racing, and rally racing
ACT Mod-Twin 225 XX Sprung Race Clutch Kit
PERFORMANCE:
- Torque capacity: 1340 ft/lbs
- Torque capacity over OE: 275%
- Sprung race-disc type
- Ceramic disc material
- Recommended use: Drag racing, road racing, or rally racing
FEEL:
- Predictable aggressive engagement
- Increased pedal effort
- Smooth-shifting
- Possible start-off judder with OE to mild transmission gear noise
CONSTRUCTION:
- Forged aluminum cover
- Mono-drive hub
- Exclusive diaphragm
- Premium friction materials with hardened wear points
QUALITY:
- Delivers maximum performance
- Delivers high-heat tolerances by combining robust design, strategic features, choice materials, and close tolerances
INCLUDES:
- CNC-machined and dynamically balanced flywheel
- Pressure plate cover
- Diaphragm spring
- Face
- Puck-style ceramic friction plates
- Sprung mono-drive hub assembly
- Floater
- Patented Monoloc Collar
- Release bearing
- Alignment tool
- Pilot bearing (if needed
NOTE:
- The MOD Twin clutches are fully rebuildable and most components can be ordered separately
A TORQUE CAPACITY OF OVER 1300 FT-LBS
The new ACT Mod Twin 225 XX Sprung Race Clutch Kit is ideal for high-horsepower AWD vehicles that experience aggressive launches and high-performance driving conditions. This clutch combines 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 that provides a consistent light-pedal feel. Other features include puck-style friction plates with high-quality ceramic friction materials that deliver a high friction coefficient, superior heat capacity, and longer clutch life. The friction plates uniformly transfer torque to a Mono-Drive sprung hub assembly which extends input shaft life and reduces driveline shock from torsional vibration.

| Specification | Value |
|---|---|
| Crank Torque Capacity | 895 Ft/Lbs |
| Disc Material | Ceramic |
| Disc Style | Sprung Hub |
| Disc Type | Multi Disc |
| Pressure Plate Style | Pull |
| Alignment Tool Included | Yes |
Installed this clutch a year or so ago, clutch performance is extremely agressive and grips like the hand of God, perfect for racing of any type, not the greatest for street use and lower rpm starts, the car will shake considerably and make a squeal noise if you try and go from a stop at low rpms, around 1k-1500, ideal starts from a stop would have to rev the rpms to 3k+, I bought the clutch without actually reading what it was for, I just saw heavy duty and decided to buy it without thinking too much, installed it and then went to try it for the first time and I stalled probably 4 times trying to get out of shop, and then another 4 times after i finally did, also stalled almost every red light because I've never use such a stiff clutch with such an agressive bite before so I had no idea, took me almost 2 months before I was finally able to drive it normally, the car does shift really smooth after you've gotten out of first and are already moving no complaints there, wouldn't recommend for daily driving I made that mistake and I don't feel like changing jt again so I'm stuck with it, also broke a bolt trying to put in it so it wasn't very fun, if using for a track vehicle then I would recommend this, it's still drivable daily but you do have to rev pretty high for it to feel normal ish, going for oem smooth feeling clutch to this is a big change and wouldn't recommend this for daily use if you don't take the vehicle to the track regularly and beat on it.