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ACT 4 Pad Rigid Race Disc (04-21 STI)
4240018 is a 4-pad rigid race disc made with high quality, ceramic friction materials. The disc engagement is harsher, but shifting is faster. The race disc features top grade rivets to securely fasten the part together. The rivet design and materials are carefully selected for maximum strength. The 4-pad rigid race disc is well-suited for the smaller disc sizes in smaller engines.
Feel: Aggressive engagement, quickest shifts, increased gear rattle;
Life: Premium ceramic friction materials provide moderate wear rates and high heat tolerance, rigid design may increase spline wear;
Quality: Lightweight rigid design, chromoly hub is heat-treated for strength and durability;
Recommended Use: Recommended for race use only;
ACT Difference: High burst strength and holds 28% more torque than typical organic materials;
Advanced Clutch Technology designs, engineers and develops products by leveraging decades of track and performance street experience. Advanced CAD, FEA simulation and CAM tools help ensure highly optimized performance, reliability and repeatability. These key advantages are produced by combining the best engineering and design methodologies with the latest in materials and manufacturing techniques.
ACT clutch kits stand unequaled in terms of consistent pedal feel, high torque capacity, long wear life and durability. In-house manufacturing is critical in tuning components specifically to each individual application, while maintaining the predictable ACT pedal feel across the entire catalog.
Fitment Years | Subaru STI |
---|---|
2004 | ✓ |
2005 | ✓ |
2006 | ✓ |
2007 | ✓ |
2008 | ✓ |
2009 | ✓ |
2010 | ✓ |
2011 | ✓ |
2012 | ✓ |
2013 | ✓ |
2014 | ✓ |
2015 | ✓ |
2016 | ✓ |
2017 | ✓ |
2018 | ✓ |
2019 | ✓ |
2020 | ✓ |
2021 | ✓ |
WARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to P65Warnings.
SKU | act4240018 |
---|---|
Manufacturer's Part Number | 4240018 |
Brand | ACT |