and autobahn

Why Upgrade Your Valve Springs

Please check your tolerances and size before installation

BMW S58 Valve Spring Fitment Guide

providing the user with easy drivability and superior clamping force

ESS Tuning Supercharger Kit, BMW E39 M5 SCR5157 and autobahnThe ESS E39 M5 G1 supercharger system delivers unparalleled acceleration and everyday driveability matched with the reliability customers have come to expect from ESS. Countless hours of development and testing have resulted in a supercharger system that produces 570 horsepower and 640NM of torque with the smoothnes and drivability of a stock car. Component quality matches or exceeds BMW OEM specification throughout the kit. The system is based on the