JE 297184 Pistons kit BMW S50B30US 12.5 (Set of 6 pic) Bore 86,50 Oversize 0,50 Stroke 85,80 CR12.5:1 ymm_68 Ultra-smooth mandrel bends and CNC

Ultra-smooth mandrel bends and CNC manufacturing for fit and flow

25" into 2" Cat-Back design with H-Pipe

GM 9986551

especially if the brakes are excessively hot and/or the conditions are humid

In order to ensure a good seal against engine bay heat - they are secured to the filter housing at 3 points and use a neoprene gasket for an airtight seal

JE 297184 Pistons kit BMW S50B30US 12.5 (Set of 6 pic) Bore 86,50 Oversize 0,50 Stroke 85,80 CR12.5:1 ymm_68 Ultra-smooth mandrel bends and CNCDESCRIPTION: Piston Set, 2618, Inv Dome Dish, 3. 4055 Bore, 1. 291 CD, 0. 866, Pin Dia, Set of 6. Bore (in) 3. 406 Bore (mm) 86. 5 Top Compression Ring Thickness 0. 0400 Second Compression Ring Thickness 0. 0480 Oil Ring Thickness 0. 111 Forging Type FSR Volume (cc) 5. 00 Series JE Pistons Piston Head Type Inv Dome Dish Pin Diameter (IN) 0. 866 Compression Height 1. 291 Make BMW Wrist Pin Style floating or press fit Floating Wall Type CHAMFERED Wall