RENNtech Intermediate ECU Upgrade | S212 | E 63 AMG | Wagon | 638 HP / 695 LB-FT | M157 | 5.5L V8 BiTurbo | MY2012-13 mercedes-benz-c-class--204-sedan---2008-2014--c-320-cdi-esr4861286 S63 AMG Sedan | MY2018+

S63 AMG Sedan | MY2018+

The maximum power number reached with the RENNtech ECU Plus Upgrade for the X253 - GLC 43 AMG SUV is 416 HP and 460 LB-FT

up to an astonishing 427 HP and 453 lb/ft at the crank

RENNtech ECU HHT (HandHeldTuner) for the 211 - E 63 AMG

and high-temperature brake fluid (600-degrees or higher)

RENNtech Intermediate ECU Upgrade | S212 | E 63 AMG | Wagon | 638 HP / 695 LB-FT | M157 | 5.5L V8 BiTurbo | MY2012-13 mercedes-benz-c-class--204-sedan---2008-2014--c-320-cdi-esr4861286 S63 AMG Sedan | MY2018+Intermediate ECU Upgrade Up to 638 HP 695 TQ Gains: +88HP +151TQ 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