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

High quality 9310 steel wrist pins and JE Pro Seal Rings are included

- CS billet 7075 aluminum light weight 40mm racing lug nuts

GFB uses stainless steel for the valve body and seat and 7075 aluminum on the actuator housing for strength and durability

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