GSC Power-Division Intake Valve Guides Set for Nissan GTR R35 VR38DETT IGN1A high-performance spring allowing the users

high-performance spring allowing the users to push higher RPMs

More details on the fuel rail can be found HERE

Part # 4195-030

222% increase in cross sectional area at the bottlenecked section of the stock tubes

some modifications may be required for PCV catch can mounting

GSC Power-Division Intake Valve Guides Set for Nissan GTR R35 VR38DETT IGN1A high-performance spring allowing the usersGSC Power Division Intake Valve Guides Set for Nissan GTR R35 VR38DETT Part # GSC 3046 12What 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. What this means for you and your installer is less time