Weistec Engineering – Mercedes-Benz M279 ECU Tune

Description

Weistec Engineering ECU tune for the M279-powered Mercedes-Benz models (2012-2020) with the Twin Turbo 6L V12 (M279). Weistec’s crank figures put the tuned engine at 691 hp and 838 lb-ft, up from 621 hp and 738 lb-ft stock, from a recalibration of the factory ECU software.

Key Features:

• Up to +70 hp / +100 lb-ft: Weistec’s crank estimate of 691 hp and 838 lb-ft, from Dynojet testing; real gains depend on fuel, conditions and supporting modifications.
• Stage calibrations: W.1 (Stock Vehicle) and W.2 (Race Exhaust fitted), so the calibration matches the hardware on your car.
• Optional add-ons: 7 Speed TCU Tune (Pre-2019), each selectable when you order.
• Reflash of the factory ECU: the original module is recalibrated rather than replaced with a stand-alone or piggyback unit.
• What changes: improved throttle response, optimized fuel and spark, increased boost and top speed limiter removed.
• Tuning method: Cypher Plus: flashed at home from your phone with a Weistec Cypher Plus.

Fitment:

• Mercedes-Benz G65 AMG 2012-2018 (W463) – Twin Turbo 6L V12 (M279)
• Mercedes-Benz Maybach G650 Landaulet 2017-2018 (W463) – Twin Turbo 6L V12 (M279)
• Mercedes-Benz Maybach S600 2015-2017 (X222) – Twin Turbo 6L V12 (M279)
• Mercedes-Benz Maybach S650 2017-2020 (X222) – Twin Turbo 6L V12 (M279)
• Mercedes-Benz S65 AMG 2014-2020 (W222 / C217 / A217) – Twin Turbo 6L V12 (M279)
• Mercedes-Benz SL65 AMG 2012-2018 (R231) – Twin Turbo 6L V12 (M279)

Not legal for sale or use on pollution-controlled motor vehicles; intended for competition use. Talk to us before ordering to confirm the right stage and tuning method for your car.