Weistec Engineering – Mercedes-Benz M177 LS2 ECU Tune

Description

Weistec Engineering ECU tune for the M177-powered Mercedes-Benz models (2016-2026) with the Twin Turbo 4L V8 (M177). Weistec’s crank figures put the tuned engine at 735 hp and 800 lb-ft, up from 603 hp and 627 lb-ft stock, from a recalibration of the factory ECU software.

Key Features:

• Up to +132 hp / +173 lb-ft: Weistec’s crank estimate of 735 hp and 800 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: CPC Module (2019+) and 9 Speed TCU Tune (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 AMG GT 63 4 Door Coupe 2018-2023 (X290) – Twin Turbo 4L V8 (M177)
• Mercedes-Benz AMG GT 63 S 4 Door Coupe 2018-2023 (X290) – Twin Turbo 4L V8 (M177)
• Mercedes-Benz E63 AMG 2016-2020 (W213 / S213) – Twin Turbo 4L V8 (M177)
• Mercedes-Benz E63 AMG S 2016-2023 (W213 / S213) – Twin Turbo 4L V8 (M177)
• Mercedes-Benz G63 AMG 2018-2023, 2025-2026 (W463, W465) – Twin Turbo 4L V8 (M177)
• Mercedes-Benz GLE580 2023-2026 (V167 / C167) – Twin Turbo 4L V8 (M176)
• Mercedes-Benz GLE63 AMG 2020-2023 (V167 / C167) – Twin Turbo 4L V8 (M177)
• Mercedes-Benz GLE63 AMG S 2020-2023 (V167 / C167) – Twin Turbo 4L V8 (M177)
• Mercedes-Benz GLS580 2019-2026 (X167) – Twin Turbo 4L V8 (M176)
• Mercedes-Benz GLS63 AMG 2020-2021 (X167) – Twin Turbo 4L V8 (M177)
• Mercedes-Benz S63 AMG 2018-2020 (W222 / C217 / A217) – Twin Turbo 4L V8 (M177)

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.