ARP 652-2500 SAE Bolt Kit 3/8-16 X 2.500 hex black oxide bolts ymm_59 the system provides measurable gains

the system provides measurable gains over the stock exhaust configuration and forms a solid platform for further tuning development

It provides precise control over boost pressure

3/16 Allen Material Custom Age 625+ Material: Custom Age 625+

Fits Following Engines:Chevrolet LS Gen III LS Series small block (2004 & later - except LS9)

Fits Following Engines: FORD 428 COBRA JET

ARP 652-2500 SAE Bolt Kit 3/8-16 X 2.500 hex black oxide bolts ymm_59 the system provides measurable gainsSpecifications Socket Size(s) 3 8 hex UHL 2. 500 Thread Length 1. 000 Grip Length 1. 500 Thread Diameter Pitch 3 8 16 Grip Diameter 3 8 Wrenching (reduced) 3 8 Head Height (reduced) 0. 300 Collar Diameter (reduced) 0. 620