RENNtech | ECU+ Upgrade | C63 /S AMG | Coupe | C205 | 601 HP / 657 LB-FT | 4.0L BiTurbo V8 | M177 | MY2017-2023 performance-part 738 LB-FT @ 2000-3000 RPM

738 LB-FT @ 2000-3000 RPM

Rated by RENNtech:              670 HP @ 5

In order to make the extractors fully functional

00 sec 119 mph W212 - E63 AMG S 4MATIC Sedan  ECU+ Upgrade w/Launch Control 3

RENNtech | ECU+ Upgrade | C63 /S AMG | Coupe | C205 | 601 HP / 657 LB-FT | 4.0L BiTurbo V8 | M177 | MY2017-2023 performance-part 738 LB-FT @ 2000-3000 RPMECU+ Upgrade 601HP 657TQ Gains: +56HP +107TQ 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 into the OBD2 port and delivers the file you choose directly to