Piston Set by JE - 87mm +.50mm Oversize Bore | 11.5:1 CR | Stock Stroke - 89.6mm - S52 BMWNOTE: Image shown not actual parts. JE Pistons is the leader in forged racing pistons. With 70 plus years of experience, in house forging, and industry leading technology, JE Pistons are designed to perform at the top levels of all forms of motorsports. Bore (in) 3. 425 Bore (mm) 87. Top Compression Ring Thickness 0. 0400 Second Compression Ring Thickness 0. 0480 Oil Ring Thickness 0. 111 Forging Type FSR Volume (cc) 9. 90 Series JE Pistons Piston

25" Rear (M5 Competition)

Retain factory engine safety protocols

T-304 Stainless Steel Construction

retains stock mounting locations

The mono-tube damper design promotes consistent damping performance and improved heat dissipation under demanding driving conditions

Our billet rad neck comes with ALL THE HARDWARE NEEDED including new aerospace grade O-ring and mounting bolts

The Evolution gives more power

The fan will need to be raised by 1 inch

1J0-598-477 / 1J0 598 477 / 1J0598477

Additional ~0

8T with an AWP engine code

MFR Part # URO-010043