E55, CLS55, SL55, S55, M113K AMG Mercedes Performance Double Idler Set Diagnosis

E55, CLS55, SL55, S55, M113K AMG Mercedes Performance Double Idler Set DiagnosisThe UPD M113K performance 2 piece idler set with important custom supercharger tensioner pulley bearing shield. Includes both double pulleys needed to replace the factory plastic idlers on your performance AMG with a high quality CNC billet aluminum machined performance pulley set. High quality Nachi bearings are used and double bearings seals are used to protect bearings from heat and dirt. All our billet performance idlers have a ultra hard anodized

the pulley will spin the supercharger faster at a higher RPM

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

***Please contact us regarding fitment before ordering this part

M276 RaceIQ ECU tune

when you decide to have our team repair your vehicle making it completely free

*Our tests show 45-50 rear wheel hp and torque gains

This pump is responsible for circulating the coolant through your cooling system

1 idler pulley

Compatible with most all cars with the M177 engine: C63

Optimized timing and fueling maps

We must have estimated Rear wheel horsepower to build the converter for your power range

*ECU tune required