83mm E55, CLS55, SL55, S55, AMG M113k Supercharger Pulley w/Clutch M133 Better throttle response

Better throttle response

the higher horsepower

UPD 55K Belt Wrap Kit Designed to stop the slipping of the belt under boost pressure and braces the double idler kit for added strength

Firmer shifts

M113K RaceIQ ECU tune with tuning software and cable included

83mm E55, CLS55, SL55, S55, AMG M113k Supercharger Pulley w/Clutch M133 Better throttle responseUpgrading your supercharger pulley is one of the easiest ways to generate more horsepower on the AMG M113k engine. By decreasing the size of the pulley, the pulley will spin the supercharger faster at a higher RPM. The higher the RPM the higher the boost. The higher the boost, the higher horsepower. We have upgraded pulleys available from some of the best and proven brands on the market. Please contact our team and have with the pulley size you're