Mercedes AMG UPD M113K Fixed Supercharger Pulley (2003 - 2011)

Now shipping! Fits 2003 - 2007 AMG Mercedes 55K Models  E55, CLS55, SL55, S55, G55, CL55 and G55 2005-2011 Ultimate Performance supercharger pulley upgrade for the AMG 55 Kompressor motor. Our tests show 90 plus wheel hp and torque gains, while maintaining a safe level of boost and supercharger rpm. Pulley upgrade offers excellent drivability and does not adversely affect highway mileage. Specs: Increases horsepower and torque 35% lighter than factory pulley, reducing rotational mass Reduced rotational mass increases supercharger longevity Easy to install Special coating reduces belt slip Improved nitride coated clutch, plate and spring design Tune will be needed for this pulley, as fuel and power increases will exceed factory tune parameters.