Ferrea's Copper Bronze Valve Guides are available for Domestic,Sport Compact and Motorcycle applications. Our high quality copper-bronze blended alloy valve guide is developed with proprietary heat treatment processes allowing for greater heat dissipation, heat resistance, and lubricity properties for the next generation of high performance race engines.
SUBARU IMPREZA WRX STI (2004 - 2017) EXHAUST, 1MM OVERSIZE
Specifications: Exhaust Standard Size. Use Ferrea Valve Seal Part# VS1015.
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