ARP 201-5001 Main Stud Kit for BMW 1.5L-2.0L (M10) & 2.3L (S14) 4-cylinder ymm_74 The tailpipe diameter is larger

The tailpipe diameter is larger than standard stock tailpipes

Akrapovič Sound Kit is also compatible with cars equipped with Alfa Romeo first fit or accessory Akrapovič exhaust

Testing on the Akrapovic dynamometer against a Porsche 911 Turbo (992) equipped with the factory Porsche sports exhaust system recorded gains of +16

75 in (70 mm)

1 kW at 4500 rpm

ARP 201-5001 Main Stud Kit for BMW 1.5L-2.0L (M10) & 2.3L (S14) 4-cylinder ymm_74 The tailpipe diameter is largerThere are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place. The studs