ARP 640-3000 SAE Bolt Kit 1/4-20 x 3.000 12pt black oxide bolts ymm_21 it helps eliminate main cap

it helps eliminate main cap walk and fretting while protecting the threads in the engine block

It can be installed externally or in-tank using optional hardware that is sold separately

with selected components cast in Akrapovic’s in-house foundry

The system also gives the engine a deeper Akrapovič sound to further enhance the driver’s enjoyment

an optional Evolution Link pipe set (SS) is available

ARP 640-3000 SAE Bolt Kit 1/4-20 x 3.000 12pt black oxide bolts ymm_21 it helps eliminate main capSpecifications Socket Size(s) 5 16 12pt UHL 3. 000 Thread Length 1. 000 Grip Length 2. 000 Thread Diameter Pitch 1 4 20 Grip Diameter 1 4 Wrenching 5 16 Head Height 0. 255 Collar Diameter 0. 515