RENNtech ECU+ Upgrade | S213 | E400 | 392 HP/432 LB-FT | 3.0L V6 BiTurbo | M276 | MY2017-2018 ferrari-812--2017-2024--esr9630581 540 wtq @ 5

540 wtq @ 5

Mercedes-Maybach S 600 BiTurbo (W222 - M277 6

CLS 63 AMG (C218 | PFL MY2012-13 | RWD | M157 | 5

Note: We have found the new M157 engine stock performance numbers vary from the baseline figures claimed by Mercedes Benz

CLK 500 (C209) Stock Performance:

RENNtech ECU+ Upgrade | S213 | E400 | 392 HP/432 LB-FT | 3.0L V6 BiTurbo | M276 | MY2017-2018 ferrari-812--2017-2024--esr9630581 540 wtq @ 5ECU+ Upgrade Up to 392 HP 463 LB FT Gains: +53 HP & +78 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 file you choose directly to the ECU. Programming takes only a few minutes and the vehicle