RENNtech | ECU Upgrade | X204 | GLK 350 BlueEFFICIENCY | 308HP/285LB-FT| 3.5L V6 NaturallyAspirated | M276 mercedes-benz-g-class--463---1990-2018--g-500-esr8550205 Dyno measured by RENNtech: 545

Dyno measured by RENNtech:  545 HP @ 6

and an enhanced sporty sound

RENNtech M157 Biturbo ECU Upgrades are TÜV approved

RENNtech Track Series RTS | Forged Aluminum Wheels | Set of 2 Front and 2 Rear | Front: 19 x 10" | Rear: 20 x 12" | 190 AMG GT R / Pro

1 at 5510 rpm 311

RENNtech | ECU Upgrade | X204 | GLK 350 BlueEFFICIENCY | 308HP/285LB-FT| 3.5L V6 NaturallyAspirated | M276 mercedes-benz-g-class--463---1990-2018--g-500-esr8550205 Dyno measured by RENNtech: 545RENNtech ECU Upgrade for 204 GLK 350 Blue Efficiency. Up to 308HP and 285LB FT. Gains: +6HP & 12LB FT RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability. RENNtechs