GSC Power-Division Single Super Alloy Exhaust Valve 30.5mm (STD) for 4G63T (gsc2005-01) 71015 TIG-Welded:

TIG-Welded:

8 1998 Audi A4 Engine: 2

the craftsmanship on our filter housings is second to none

Increase engine performance with the STILLEN air intake for Nissan Titan H61

Setup -factory pre-configured damping modes with adaptive damper control

GSC Power-Division Single Super Alloy Exhaust Valve 30.5mm (STD) for 4G63T (gsc2005-01) 71015 TIG-Welded:For those running high horsepower, high EGT set ups that need a valve that will last in 2000 F conditions. The Super Alloy Exhaust valves have chrome polished stems to create a smooth, durable finish for added life and better lubricity, especially when paired with the GSC Manganese bronze valve guides. Strength, heat resistance, and performance are engineered into every valve. Under head dish is maximized for weight savings while swirl polished and