77mm E55, CLS55, SL55, S55, AMG M113k Supercharger Pulley w/Clutch Diagnosis

77mm E55, CLS55, SL55, S55, AMG M113k Supercharger Pulley w/Clutch DiagnosisUpgrading 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

Easier and consistent tuning Increases belt wrap on both crank and supercharger pulleys

Please contact our team and have with the pulley size you're looking for so we can assist you in locating the correct pulley for your specific application

if you have an aftermarket AMG bumper installed on your car

Torque limiters are raised

Prevents loss of boost under full throttle

*Same day quick swap install option available for an additional $150 if you bring your car into the shop

0L Turbo M133 engine: CLA45 AMG

This converter is special order and takes about two weeks to build and ship

High quality Nachi bearings are used and double bearings seals are used to protect bearings from heat and dirt

*ECU tune required

thus increasing power equally across the power band

*Our tests show up to 70+ rear wheel hp and torque gains with our tune