ARP 205-5001 Main Bolt Kit for HOLDEN 308 V8 ymm_24 and this also provides acoustic

and this also provides acoustic feedback to the driver – to know and feel which rpm the car is being driven at

Installation of the Akrapovič Sound Kit invalidates the ECE type approval of the exhaust system

Gauge Port - Yes

Fitment notice:

Specifications Socket Size(s) 15mm 12pt Kit Instructions

ARP 205-5001 Main Bolt Kit for HOLDEN 308 V8 ymm_24 and this also provides acousticFar superior to any other main bolt kit offered for use in competition engines, ARP main bolts are designed to meet the exacting standards and demands of professional engine builders. Forged from 8740 chrome moly, all bolts feature generous under head radius and rolled threads for the utmost reliability. The threads are rolled after heat treating, which makes them about 1000% longer fatigue life than most main bolts, which are threaded prior to heat