GSC P-D Chrome Polished Exhaust Valves 33mm Head (+1mm) - Subaru WRX 2002-2014 / STi 2004-2020 (Set of 8; +Multiple Subaru Fitments) 1994 Unlimited boost-holding

Unlimited boost-holding

Here are the details:

Equipping your MK5 or MK6 2

The friction surface used is an incredibly strong 1045 steel

GSC P-D Chrome Polished Exhaust Valves 33mm Head (+1mm) - Subaru WRX 2002-2014 / STi 2004-2020 (Set of 8; +Multiple Subaru Fitments) 1994 Unlimited boost-holdingWhen designing these valves, GSC used advanced 3D design and simulation programs to create a stronger and higher flowing valve head design. Prototypes were used in the specific applications to make sure that they have the highest flowing valve head that is available on the market today. The materials they have used have less valve distortion at the face than any of the tested designs which allow for better sealing under extreme conditions to promote