Mercedes AMG M113K 77mm & 5 piece Bundle - Gold Edition

For E55, CLS55, S55, CL55, G55 Limited edition Gold anodized 77mm and 5 piece idler kit bundle! Ultimate Performance Gold 77mm supercharger pulley upgrade for the AMG 55 Kompressor motor. Our tests show 60 to 70 + rear wheel hp and torque gains, while maintaining a safe level of boost and supercharger rpm. Pulley upgrade offers excellent driveability and does not adversely affect highway mileage. Fits 2003 - 2007 AMG Mercedes 55K Models. The patented and original Ultimate Performance supercharger pulley upgrade for the AMG 55 Kompressor motor.Specs: Increases horsepower and torque 35% lighter than factory pulley, reducing rotational mass Reduced rotational mass increases supercharger longevity 77 mm diameter Easy to install Special coating reduces belt slip Improved nitride coated clutch, plate and spring design 77 mm in size supplied with the kit up to 3+ psi increase with tune (as compared to a stock supercharger pulley) Weight: 2.5lbs (one pound less than stock 3.5) ~28.5% reducti