E63, C63, CLS63, SLS63, S63, G63, Cl63 AMG M156 AMG 5 Piece Idler Pulley Set e55 or E class with AMG

or E class with AMG rear bumper

Any car with over 100k miles should replace the stock plastic pulleys

-Excellent fitment & quality

or E class with AMG side skirts/rocker panels

Gains about 40hp & 50ft/lbs tq on stock engine

E63, C63, CLS63, SLS63, S63, G63, Cl63 AMG M156 AMG 5 Piece Idler Pulley Set e55 or E class with AMGThe UPD high performance M156 5 piece idler set will completely replace your stock plastic idler pulleys with a high quality CNC billet aluminum machined performance pulley set. High quality Nachi bearings are used and only double bearings seals are used to protect bearings from heat and dirt. All of these billet performance idlers have a ultra hard anodized coating. 5 axis CNC machined for precise quality and made in USA CNC Billet hard anodized