RENNtech ECU+ Upgrade | X253 | GLC 43 AMG | SUV | 416 HP / 460 LB-FT | M276 | 3.0L V6 BiTurbo | MY2016+ mercedes-benz-c-class--205-sedan---2015-2022--c-400-biturbo-esr2261787 Activation completely independent regardless of

Activation completely independent regardless of drive mode Override your cars factory exhaust flap setting with the push of a button

S 63 AMG (W222 | Sedan | MY2014-2017 | 4MATIC | M157 | 5

RT ECU Upgrade and performance air filter

Confirm If Your Car Is Equipped with Factory Exhaust Valves* - EVM will not work on vehicles without factory exhaust valves

93+ Octane gasoline is mandatory with this Performance Package

RENNtech ECU+ Upgrade | X253 | GLC 43 AMG | SUV | 416 HP / 460 LB-FT | M276 | 3.0L V6 BiTurbo | MY2016+ mercedes-benz-c-class--205-sedan---2015-2022--c-400-biturbo-esr2261787 Activation completely independent regardless ofRENNtech ECU Plus Upgrade for X253 GLC 43 AMG SUV. The ECU Plus Upgrade brings the GLC 43 AMG SUV up to 416 HP and 460 LB FT. Gains: +41 HP and +62 LB FT. 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