GSC Power-Division Billet S1 camshaft set for BMW S58

GSC Power-Division billet S1 cams for the BMW S58 Double Vanos, Valvetronic (variable lift) power plant of the BMW M Performance G-body vehicles.. 
Designed for a rev range of 3500-7500 RPMs
Quick Throttle response and improved mid range power
500-900 WHP camshaft set
Integrated Intake Cam trigger
Forged Billet Construction
An Upgraded valve spring upgrade is Required