E46 M3 S54 Racing Pulley Set, Turner Motorsport

Turner Motorsport S54 racing pulley set for E46 M3. Direct bolt-on for S54 engines only - no machining or modifications required.

• Underdrive spec: Alternator, water pump and power steering pulleys reduced by up to 20% for crank horsepower gain
• Track-focused design: T-6061 aluminium, black hard anodised; tested at high RPM without accessory failure
• Not road legal: Alternator output drops below ~2,500 RPM - suited to dedicated track or race E46 M3 builds only