GSC Power-Division Exhaust Valve Guides Stopper Style - Subaru Models (inc. 2002-2014 WRX / 2004-2021 STI) Subaru-Forester-2010 NOTE: This version is not

NOTE: This version is not ceramic coated

External damper adjustment

fuel delivery

clear sight window allows for hassle-free filter inspection

GSC Power-Division Exhaust Valve Guides Stopper Style - Subaru Models (inc. 2002-2014 WRX / 2004-2021 STI) Subaru-Forester-2010 NOTE: This version is notHIGHLIGHTS: Stopper style to avoid getting pushed in too far Durable bronze construction Complete set for the exhaust side GSC Power Division Exhaust Valve Guides Stopper Style SPECS: Made from true C67410 Manganese Bronze Turned on a dedicated precision CNC turning center Stopper style Sold as a complete set for the exhaust side GSC HAS THE RIGHT INGREDIENTS WHEN IT'S TIME TO SERVICE THE HEADS ON YOUR SUBARU For those of you rebuilding your heads in