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 Rated by RENNtech (peak @wheel):

Rated by RENNtech (peak @wheel):              325 whp @ 5

Gains: +7HP & +28LB-FT

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

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

495 LB-FT @ 3

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 Rated by RENNtech (peak @wheel):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