AMG Mercedes M113k BLACK 77mm supercharger pulley E55, SL55, CLS55, G55 70HP +

Description

Ultimate Performance 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.  Our tests show 60-70+ 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.
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
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% reduction in weight
Equates to 180mm crank pulley in power but much less rotating mass!
Made in USA by UPD (not
offshore
)