RENNtech ECU Upgrade | A 45 AMG | W176 | 428HP/417LB-FT | 2.0L Turbo | M133 mercedes-benz-gle-class--166---2016-2020--gle-63-amg-esr4679580 CLS 55 AMG Kompressor

CLS 55 AMG Kompressor

With the proprietary RENNtech ECU Plus Upgrade the C253 - GLC 43 AMG Coupe gains up to +41 HP and +62 LB-FT

Rated by RENNtech (peak @crank):              731 HP @ 6

and greater stability at high speeds

RENNtech ECU Upgrade | A 45 AMG | W176 | 428HP/417LB-FT | 2.0L Turbo | M133 mercedes-benz-gle-class--166---2016-2020--gle-63-amg-esr4679580 CLS 55 AMG KompressorRENNtech ECU Upgrade for the 176 A 45 AMG. Up to 428HP and 417TQ. Gains: +73HP & +85TQ RENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal! Our proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few