Description
Weistec Engineering ECU tune for the McLaren 540C, 570GT and 570S (2016-2021) with the Twin Turbo 3.8L V8 (M838TE). Weistec’s crank figures put the tuned engine at 685 hp and 604 lb-ft, up from 562 hp and 443 lb-ft stock, from a recalibration of the factory ECU software.
Key Features:
- Up to +123 hp / +161 lb-ft: Weistec’s crank estimate of 685 hp and 604 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.
- 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 Pro Dealer: installed through a certified Weistec Cypher Pro dealer.
- Burble & pops available: deceleration burble can be added to the calibration on request.
Fitment:
- McLaren 540C 2016-2021 – Twin Turbo 3.8L V8 (M838TE)
- McLaren 570GT 2017-2021 – Twin Turbo 3.8L V8 (M838TE)
- McLaren 570S 2016-2021 (Base, Spider) – Twin Turbo 3.8L V8 (M838TE)
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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