GSC Power-Division Viton Valve Stem Seals for the WRX & STI include the entire 6mm valve size seal set (8 intake and 8 Exhaust)so you will have no guess-work when it comes to installation. These stem seals are an upgrade from the standard OEM material to help cope with the higher heat caused by high performance Subaru EJ engines.
Harper Thomas - 2024-03-03
Quick delivery and the product quality is exceptional. Very fair pricing and the customer service is top-notch!