ARP 652-3750 SAE Bolt Kit 3/8-16 X 3.750 hex black oxide bolts ymm_37 True laser-etched markings on the

True laser-etched markings on the leading edge of the gear allow for quick

9 HP (i) / 5500 rpm (Stock)

providing a perfect fit

Z4 M with S54 engine

Handcrafted titanium headers incorporate 100 cpsi sports catalytic convertors and side mufflers—all designed to increase power and torque—the Evolution Header Set utilizes integrated catalytic convertors and the functionality of the exhaust valves to deliver an out-and-out attack on the senses

ARP 652-3750 SAE Bolt Kit 3/8-16 X 3.750 hex black oxide bolts ymm_37 True laser-etched markings on theSpecifications Socket Size(s) 3 8 hex UHL 3. 750 Thread Length 1. 000 Grip Length 2. 750 Thread Diameter Pitch 3 8 16 Grip Diameter 3 8 Wrenching (reduced) 3 8 Head Height (reduced) 0. 300 Collar Diameter (reduced) 0. 620