RENNtech ECU Upgrade | W212 | E 63 S AMG | Sedan | 638 HP / 695 LB-FT | M157 | 5.5L V8 BiTurbo | MY2014-2016 carbon-fiber With the first use

With the first use

Furthermore

With the proprietary RENNtech ECU Tuning the W213 - E400 gains up to +53 HP and +78 LB-FT

GLE 43 AMG SUV (W166 | M276 | 3

The maximum power number reached with the RENNtech ECU Upgrade for the AMG GT-S is 601 HP and 582 LB-FT

RENNtech ECU Upgrade | W212 | E 63 S AMG | Sedan | 638 HP / 695 LB-FT | M157 | 5.5L V8 BiTurbo | MY2014-2016 carbon-fiber With the first useECU Upgrade Up to 638HP 695LB FT Gains: +33HP & +49LB FT RENNtech M157 Biturbo ECU Upgrades are TV approved! Our intermediate level ECU upgrade for the Mercedes M157 Biturbo 4 MATIC engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability. This is ideal for customers who want increased performance in their daily driver without worry of extra strain on driveline components