ARP 621-0515 SAE Bolt Kit 1/4-20 x 0.515 hex SS bolts ymm_59 which can be controlled with

which can be controlled with a console button inside the cabin or by the Sound Remote Controller of the optional Akrapovič Sound Kit

Valves: 2 (one per side of muffler)

950˝ Screw-in Diameter-Pitch 7/16-14

while the bolt kits come with washers

Please turn to your Area sales manager for detailed explanation on differences in order to choose the appropriate exhaust for your car

ARP 621-0515 SAE Bolt Kit 1/4-20 x 0.515 hex SS bolts ymm_59 which can be controlled withSpecifications Socket Size(s) 5 16 hex UHL 0. 515 Thread Length 0. 515 Grip Length n a Thread Diameter Pitch 1 4 20 Grip Diameter 1 4 Wrenching 5 16 Head Height 0. 255 Collar Diameter 0. 515