RENNtech ECU Upgrade | SL 65 AMG | R231 | 735HP/836LB-FT | 6.0L BiTurbo V12 | M279 bentley-continental-gt-speed--2011-2018--6-0l-w12-ea398-twin-turbo-esr2694718 Crank Performance Numbers are calculated

Crank Performance Numbers are calculated with a 14% Drivetrain loss on RWDvehicles

Gains: +55HP & +56TQ

RENNtech’s Exhaust Valve Module

RPM Tuned: 484 HP | 485 LB FT

RENNtech ECU Upgrade | SL 65 AMG | R231 | 735HP/836LB-FT | 6.0L BiTurbo V12 | M279 bentley-continental-gt-speed--2011-2018--6-0l-w12-ea398-twin-turbo-esr2694718 Crank Performance Numbers are calculatedRENNtech 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