Description
Weistec Engineering ECU tune for the Mercedes-Benz AMG GT, AMG GT S, AMG GT C and AMG GT R (2015-2021) with the Twin Turbo 4L V8 (M178). Weistec’s crank figures put the tuned engine at 605 hp and 624 lb-ft, up from 456 hp and 443 lb-ft stock, from a recalibration of the factory ECU software.
Key Features:
- Up to +149 hp / +181 lb-ft: Weistec’s crank estimate of 605 hp and 624 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: AMG GT TCU Tune, 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 AMG GT 2015-2021 (C190) – Twin Turbo 4L V8 (M178)
- Mercedes-Benz AMG GT C 2017-2021 (C190) – Twin Turbo 4L V8 (M178)
- Mercedes-Benz AMG GT R 2017-2021 (R190) – Twin Turbo 4L V8 (M178)
- Mercedes-Benz AMG GT S 2015-2021 (C190) – Twin Turbo 4L V8 (M178)
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.
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