RENNtech ECU Upgrade | SL 65 AMG | R231 | 735HP/836LB-FT | 6.0L BiTurbo V12 | M279 mercedes-benz-glc-class-coupe--253---2016-present--glc-63-amg-esr1091906 By allowing a greater volume

By allowing a greater volume of intake charge air

773 HP +92 HP 778 LB-FT +42 LB-FT W222 - AMG S63 R1 Package 773 HP +92 HP 778 LB-FT +42 LB-FT W222 - AMG S63 R2 Package 793 HP +112 HP 788 LB-FT +52 LB-FT W222 - AMG S63 R3 Package 875 HP +194 HP 871 LB-FT +135 LB-FT W222 - AMG S63 R3+ Package 1

EVM does not engage with CAN-Bus

C118 - CLA Coupe CLA250

C190 - AMG GT R

RENNtech ECU Upgrade | SL 65 AMG | R231 | 735HP/836LB-FT | 6.0L BiTurbo V12 | M279 mercedes-benz-glc-class-coupe--253---2016-present--glc-63-amg-esr1091906 By allowing a greater volumeRENNtech ECU Upgrade for 231 SL 65 AMG. Up to 735HP and 836LB FT. Gains: +114HP & +100LB 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