RENNtech | HHT | ECU Upgrade | SLS AMG | C197 | 593HP/495LB-FT | 6.3L V8 N/A | M159 mercedes-benz-glb-class--247---2020-present--glb-35-amg-esr9030634 Crank Performance Numbers are calculated

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

SKU: Turbo:09

686 awtq @ 3

RENNtech ECU Upgrade for 212 - E 400 BiTurbo 4-MATIC Coupé

Please note:

RENNtech | HHT | ECU Upgrade | SLS AMG | C197 | 593HP/495LB-FT | 6.3L V8 N/A | M159 mercedes-benz-glb-class--247---2020-present--glb-35-amg-esr9030634 Crank Performance Numbers are calculatedRENNtech HHT ECU Upgrade for 197 SLS AMG. Up to 593HP and 495LB FT. Gains: +30HP & +14LB 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