CAT Cams Camshaft Set, BMW S50B30 Euro valve springs and F98 X4M—with 5150 AutoSport’s

and F98 X4M—with 5150 AutoSport’s Pro-Xtreme Forged Pistons

1981-1987     E23     720i

Kit spring: SPR-2521/2

offering enhanced reliability and longevity

Street car owners can enjoy smoother acceleration and increased torque with mild upgrades

CAT Cams Camshaft Set, BMW S50B30 Euro valve springs and F98 X4M—with 5150 AutoSport’sPlease note: All camshafts must be installed by a professional engine builder, using the provided camshaft specification sheet. The builder is responsible for verifying piston to valve clearance and setting engine timing according to the cam card specifications, not the factory settings. For European Engines with Single VANOS Upgrade your BMW S50B30 engine with a CAT Cams performance camshaft setengineered to enhance power, throttle response, and RPM