Supertech Black Nitride Race Dished Valve Set - Subaru WRX STi Turbo DOHC (EJ20)
Supertech Black Nitride Race Dished Valve Set - Subaru WRX STi Turbo DOHC (EJ20)
Supertech Valve made in one piece forged stainless steel. Supertech Performance uses mainly SAE EV8 (UNS S63008) for the Intake and Exhaust valve. Black nitride layer reduces power loss thanks to less valve-guide friction.
Supertech Performance apply's different heat treatments to this material to obtain different hardness and ductility in accordance to application and budget (Street Performance or Heavy Duty Racing).
Vehicle/Engine applications: Subaru 2.0L WRX STi Turbo DOHC (EJ20)
Sold as a 16pc set (8 intake / 8 exhaust standard sized valves)
Returns
Returns
We realize that returns and exchanges are a part of the purchasing process and we do our best to make it as easy as possible. If you are not 100% satisfied with your purchase, you can return your order to JHPUSA within 14 DAYS from the invoice date.
Questions
Questions
