GSC P-D Chrome Polished Exhaust Valve - 31.5mm Head (+1mm) - Evo 1-9 / 90-98 DSM (Set 8) vendor_NRG Smooth interior walls increase airflow

Smooth interior walls increase airflow for better performance

Made from high quality SAE9254 steel

One of the most noticeable compromises on the G35 and 350Z suspension is the soft

Valves will work with an OEM keeper/lock or when available their upgraded keeper/lock

GSC P-D Chrome Polished Exhaust Valve - 31.5mm Head (+1mm) - Evo 1-9 / 90-98 DSM (Set 8) vendor_NRG Smooth interior walls increase airflowPart #: 2003 8 When 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