RENNtech ECU Upgrade | S 600 | W222 | 582HP/752LB-FT | 6.0L BiTurbo V12 | M277 | MY2015-2017 mercedes-benz-s-class--s222---2014-2017--s65-amg-biturbo-4matic-esr7187941 Crank Performance Numbers are calculated

Crank Performance Numbers are calculated with a 17% Drivetrain loss on 4MATIC vehicles

The RENNtech upgraded M278 now produces up to 540 HP and 705 LB-FT at crank

Our experience

and was tested and perfected on the Nürbugring

The RENNtech Power Module is contained in a CNC machined 6061 aluminum enclosure with pre-labeled wires and connectors

RENNtech ECU Upgrade | S 600 | W222 | 582HP/752LB-FT | 6.0L BiTurbo V12 | M277 | MY2015-2017 mercedes-benz-s-class--s222---2014-2017--s65-amg-biturbo-4matic-esr7187941 Crank Performance Numbers are calculatedRENNtech ECU Upgrade for 222 S 600 BiTurbo V12. Up to 582HP and 752TQ. Gains: +59HP & +140TQ 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