RENNtech Intermediate ECU Upgrade | C216 | CL 63 AMG | 638 HP / 695 LB-FT | M157 | 5.5L V8 BiTurbo | MY2011-14 porsche-macan-turbo--2015-2021--esr8709534 lightweight aluminum our suspension kit

lightweight aluminum our suspension kit allows four-corner independent ride height adjustments and the ability to perform vehicle corner weighting

GL 450 BiTurbo (X166 - M276 Biturbo 4-MATIC Engine) Stock Performance:

Up to 402HP and 405 LB-FT

increasing the engine's rev limiter and modifying boost mapping for turbo-charged vehicles

RENNtech Intermediate ECU Upgrade | C216 | CL 63 AMG | 638 HP / 695 LB-FT | M157 | 5.5L V8 BiTurbo | MY2011-14 porsche-macan-turbo--2015-2021--esr8709534 lightweight aluminum our suspension kitIntermediate 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