RENNtech Intermediate ECU Upgrade | C216 | CL 63 AMG | 638 HP / 695 LB-FT | M157 | 5.5L V8 BiTurbo | MY2011-14 porsche-panamera--971---2016-2024--turbo-s-sport-turismo-esr8018897 fall off or fade when

fall off or fade when mounted to the exterior of their vehicle after six months or while driving at high speed

The RENNtech Hand-Held Suspension Module (HSM) is designed to work with the Mercedes Airmatic Suspension

600 RPM Crank Performance Numbers are calculated with a 14% Drivetrain loss on RWD vehicles

RENNtech is proud to introduce this sporty yet elegant rear deck lid spoiler for the S-Class

0L V6 BiTurbo) Modified Performance (at crank):

RENNtech Intermediate ECU Upgrade | C216 | CL 63 AMG | 638 HP / 695 LB-FT | M157 | 5.5L V8 BiTurbo | MY2011-14 porsche-panamera--971---2016-2024--turbo-s-sport-turismo-esr8018897 fall off or fade whenIntermediate ECU Upgrade Up to 638HP 695TQ Gains: +75HP +101TQ RENNtech M157 Biturbo ECU Upgrades are TV approved! Our intermediate level ECU upgrade for the Mercedes M157 engine still offers huge gains in performance across the entire RPM range, but with a slightly reduced peak HP and torque from our standard tune. This is ideal for customers who want increased performance in their daily driver without worry of extra strain on driveline components or