RENNtech ECU+ Upgrade | X167 | GLS 63 S AMG EQ Boost | 745 HP / 767 LB-FT | 4.0L V8 BiTurbo EQ Boost | M177 | MY2021-2023 mercedes-benz-c-class--205-coupe---2016-2023--c-450-esr8195367 MANUFACTURED IN THE US

MANUFACTURED IN THE US

They are made in one single piece with no welded joints in the corners

CLASS G (W 463) 300 Turbodiesel Torpedo (HP: 177 | Year: 97 > 01)

450 HP / 332 LB/FT

W463a - G550

RENNtech ECU+ Upgrade | X167 | GLS 63 S AMG EQ Boost | 745 HP / 767 LB-FT | 4.0L V8 BiTurbo EQ Boost | M177 | MY2021-2023 mercedes-benz-c-class--205-coupe---2016-2023--c-450-esr8195367 MANUFACTURED IN THE USECU+ Upgrade Up to 745HP 767 LB FT Gains: +97 HP & +54 LB FT RENNtech HHT (Hand Held Tuner) allows you the unlimited ability to switch between tuned and stock ECU programming without ECU removal! RENNtechs proprietary tuning module contains both the Tuned file as well as 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 minutes and the vehicle can