they've entirely replaced the slim stock core and plastic end tanks with a full aluminum

Reversible to allow use on either driver or passenger side

Performance valve seats offer improved heat resistance

5150 rod bearings consistently deliver superior longevity and reliability

Engineered for 9500 RPM

BMW M50 M52 S50 S52 Supercharger Camshaft Set G39 they've entirely replaced the slim5150 AutoSport Camshafts for Supercharged BMW E36 Engines M50 M52 S50 S52 Note: Camshafts ONLY. Lifters sold separately. Please 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. Introducing the 5150 AutoSport Supercharger