ARP 721-0515 SAE Bolt Kit 1/4-28 x .515 hex SS bolts ymm_36 2 LSU and NEVER requires

2 LSU and NEVER requires free-air calibration when used with AEM’s 30-4110 Wideband UEGO AFR Gauge

Top the system off with two pairs of eye-catching handcrafted carbon fibre tailpipes

make sure studs and bolts are re-torqued after the engine has been run

ARP main stud kits provide superior strength and protection for your engine's bottom end

ARP 721-0515 SAE Bolt Kit 1/4-28 x .515 hex SS bolts ymm_36 2 LSU and NEVER requiresSpecifications Socket Size(s) 5 16 hex UHL 0. 515 Thread Length 0. 515 Grip Length n a Thread Diameter Pitch 1 4 28 Grip Diameter 1 4 Wrenching 5 16 Head Height 0. 255 Collar Diameter 0. 515