GSC Traditional Exhaust Valve Guide Set - Subaru EJ20 / EJ25 Epic Engineering We recommend it for cars

We recommend it for cars up to 50-70% more power(depending on part number)

For Turbochargers with 2

Please Note:

These are perfect for those who like to enjoy the weekend autocross

GSC Traditional Exhaust Valve Guide Set - Subaru EJ20 / EJ25 Epic Engineering We recommend it for carsGSC Power Division makes traditional exhaust valve guides that fit properly, easier to install and shaped to help air flow instead of just copying the OEM design. GSC's Subaru EJ20 EJ25 exhaust valve guides are made from true C67410 Manganese Bronze and turned on a dedicated precision CNC turning center creating some of the tightest tolerances in the industry with the best quality control possible. *Note these guides do not feature a depth stop and