W211 E63 AMG XY Style Carbon Fiber Front Lip ECU Tune Easier and consistent tuning Increases

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

The quicker shifting also benefits the transmission because there's a lot less slippage shifting between gears

Designed to stop the slipping of the belt under boost pressure to maintain maximum boost under full throttle and brace the weak factory double idlers

By decreasing the size of the pulley

Holds gear in "M" mode

W211 E63 AMG XY Style Carbon Fiber Front Lip ECU Tune Easier and consistent tuning IncreasesCompatibility: W211 2007 2009 E63 AMG Excellent fitment & quality Direct bolt on Professional installation required & available Constructed with fiber reinforced polymer with carbon fiber overlay Will not fade from sun like other carbon fiber lips on the market ***Please contact us regarding fitment before ordering this part, if you have an aftermarket AMG bumper installed on your car.***