ARP 716-3250 SAE Bolt Kit 1/2-20 x 3.250 hex black oxide bolts ymm_20 and the tones can also

and the tones can also be controlled from within the cockpit with addition of the optional Akrapovič Sound Kit

Use of the optional Sound Kit invalidates ECE homologation

12-position rotary dial with 330° sweep

Specifications Socket Size(s) 1/2 hex UHL 3

You will note that gaskets and cylinder heads literally glide into position and are perfectly aligned – something that won’t happen with inferior quality head studs

ARP 716-3250 SAE Bolt Kit 1/2-20 x 3.250 hex black oxide bolts ymm_20 and the tones can alsoSpecifications Socket Size(s) 9 16 hex UHL 3. 250 Thread Length 1. 250 Grip Length 2. 000 Thread Diameter Pitch 1 2 20 Grip Diameter 1 2 Wrenching 9 16 Head Height 0. 450 Collar Diameter 0. 850