Description
11,000 RPM Valve Spring Kit BMW M50 M52 S50 S52 Valve Size:6 mm The Pro Xtreme Piston design is v band Diagram Reference Bushing Type:22 Rear Diff Rear Mounting Bushing Race THR 02 backed by 55 years The Pro Xtreme Piston design is specifically engineered to handle up to 1200 horsepower These Pro Xtreme Connecting Rods are engineered to handle the intense stresses created by high powered