RENNtech | ECU+ Upgrade | C63 /S AMG | Coupe | C205 | 601 HP / 657 LB-FT | 4.0L BiTurbo V8 | M177 | MY2017-2023 performance-part In order to make the

In order to make the extractors fully functional

This highly integrated pre-preg carbon fiber spoiler compliments the sophisticated and refined C-Coupe exterior design language

CLS 400 BiTurbo (C218 - M276 Biturbo 4-MATIC Engine) Modified Performance:

With the RENNtech ECU Plus Upgrade the W205 - C 43 AMG Sedan gains up to +41 HP and +62 LB-FT

The maximum power number reached with the RENNtech ECU Upgrade for the GT 63 AMG S 4-Door Coupe is 783 HP and 798 LB-FT

RENNtech | ECU+ Upgrade | C63 /S AMG | Coupe | C205 | 601 HP / 657 LB-FT | 4.0L BiTurbo V8 | M177 | MY2017-2023 performance-part In order to make theECU+ 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