Manley Performance Valve spring and Retainer Kits take the guess work out of making your valvetrain race-ready. Engineered for maximum durability, stability, and precision in high-performance and racing applications, these chrome-silicon alloy springs provide exceptional fatigue resistance and high-tensile strength, ensuring consistent valve control at extreme RPMs. Save time and money with these kits, featuring premium springs, retainers, designed to handle aggressive aftermarket camshafts.
This Part Fits:
| Year |
Make |
Model |
Submodel |
| 2002-2005 |
Subaru |
Impreza |
WRX |
| 2004-2011 |
Subaru |
Impreza |
WRX STI |
| 2007,2011 |
Subaru |
Impreza |
WRX STI Limited |
| 2010 |
Subaru |
Impreza |
WRX STI Special Edition |