BMW S63 Forged Piston Set, Pro-Xtreme, Alusil Bore Size:89.20 mm a leader in fastener technology

a leader in fastener technology for high-performance engines

PMU16 Device

ARP Connecting Rod Bolts

are engineered for extreme horsepower and high-RPM BMW S54 applications

BMW S63 Forged Piston Set, Pro-Xtreme, Alusil Bore Size:89.20 mm a leader in fastener technologyThese pistons are suitable for use in engine blocks with factory alusil bores, no sleeving is required. Recommended piston to wall clearance is ~0. 0025 0. 0035 in 5150 AutoSport Pro Xtreme Forged Pistons for BMW S63 Engines Upgrade your BMW S63 enginefound in the F90 M5, F91 F92 M8, and X5M X6M modelswith 5150 AutoSports Pro Xtreme Forged Pistons, made in collaboration with CP Carrillo. These pistons are built to handle extreme horsepower, intense