Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.Swirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.Variety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine's specific requirements.Recommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.
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 |
