ARP 755-4500 SAE Bolt Kit 1/2-20 x 4.500 12pt SS bolts ymm_38 HIGH PERFORMANCE SERIES: High Performance

HIGH PERFORMANCE SERIES: High Performance head bolts are available with a reduced wrenching hex or 12-point and wide area flanged head that eliminates the need for valve train removal to facilitate cylinder head retorquing

The sound has been tuned to ideally suit the in-line six-cylinder turbo engine

This gives the system – which is designed for racing track use only

Acoustic development delivers a distinctive sound profile with a deeper and sportier tone compared to the stock system

ARP 755-4500 SAE Bolt Kit 1/2-20 x 4.500 12pt SS bolts ymm_38 HIGH PERFORMANCE SERIES: High PerformanceSpecifications Socket Size(s) 9 16 12pt UHL 4. 500 Thread Length 1. 250 Grip Length 3. 250 Thread Diameter Pitch 1 2 20 Grip Diameter 1 2 Wrenching 9 16 Head Height 0. 450 Collar Diameter 0. 850