RENNtech ECU Upgrade | C253 | GLC 43 AMG | Coupe | 400 HP / 440 LB-FT | M276 | 3.0L V6 BiTurbo | MY2016-2022 mercedes-benz-c-class--205-sedan---2015-2022--c-43-amg-esr5749443 Weight optimization and developed specifically

Weight optimization and developed specifically for the Mercedes-Benz 166 - GLS/GL63 AMG

wet-layup method which results in components of inferior

017 HP and 873 LB-FT @ crank with 100 Octane Fuel

yet highly functional aesthetic

0 (HP: 306 | Year: 11 > )

RENNtech ECU Upgrade | C253 | GLC 43 AMG | Coupe | 400 HP / 440 LB-FT | M276 | 3.0L V6 BiTurbo | MY2016-2022 mercedes-benz-c-class--205-sedan---2015-2022--c-43-amg-esr5749443 Weight optimization and developed specificallyThe RENNtech ECU upgrade brings the GLC 43 AMG Coupe up to 400 HP and 440 LB FT Gains: +25 HP and +42 LB FT. RENNtech tuning products are certified to meet CARB standards in all 50 States. 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