GSC Power-Division Intake Valve Guide Set of 8-Standard (gsc3062-8) 2506 While the E46 M3 and

While the E46 M3 and E39 M5 come with a factory oil cooler

A lock-out feature also prevents intentional or unintentional adjustments while driving

Excludes vehicles with MAF sensor

(2) Coilover Sleeves

5" T304L stainless steel with a hefty wall thickness of

GSC Power-Division Intake Valve Guide Set of 8-Standard (gsc3062-8) 2506 While the E46 M3 andGSC has quite simply made a series of 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 fitting guides to the head due to holding the tightest tolerances in the industry with the best quality