R35 GSC Power-Division Exhaust Valve Guide Set

Exhaust Valve Guide Set (3045-12) by GSC Power-Division®. Sold as a Set of 12. What we have done is actually quite simple, we made valve guides that fit properly, are easier to install, and shaped to help air flow instead of just copying the OEM design. The GSC Power-Division valve guides are made from true C67410 Manganese Bronze and turned on a dedicated precision CNC turning center.