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BMW 8 serie GC 840i 340hp

2019 ->

340 Original HP
400 Modified HP
450 Original NM
580 Modified NM
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BMW 8 serie GC

BMW 8 serie GC 2019 -> 840i 340hp

Key Specifications

Generazione 2019 ->
Carburante Petrol
Codice motore B58B30
ECU Bosch MG1CS201
Rapporto compressione 11.0:1
Alesaggio x Corsa 82.0 X 94.6 mm
Power 340 → 400 hp +60 hp
Torque 450 → 580 Nm +130 Nm
Power
400 HP
+60 HP (+17.6%)
Original 340 HP
Stage 1 400 HP
Torque
580 NM
+130 NM (+28.9%)
Original 450 NM
Stage 1 580 NM

Power Graph

Original Power 340HP
Original Torque 450Nm
Power After Remap 400HP
Torque After Remap 580Nm

Discover Our Tuning Solutions

Frequently Asked Questions - BMW 8 serie GC

The cost of Stage 1 tuning for BMW 8 serie GC 840i 340hp varies depending on the ECU (Bosch MG1CS201) and specific requirements. Contact us for a free personalized quote.

Stage 1 tuning for BMW 8 serie GC typically takes 1-2 hours of work. Time may vary depending on the ECU type.

Yes, our Stage 1 tunes are developed respecting the engine's safety margins. The power increase from 340 to 400 HP (+18%) is within safe parameters.

With Stage 1 tuning, BMW 8 serie GC goes from 340 HP to 400 HP (+60 HP) and from 450 Nm to 580 Nm (+130 Nm).

Stage 1 remapping takes it from 340 HP to 400 HP (+60 HP, +18%) and torque from 450 Nm to 580 Nm (+130 Nm). These figures refer to the standard engine, with no hardware modifications.

A remap changes the factory calibration, so on a vehicle still under manufacturer warranty it may affect coverage on powertrain components. Performance tuning keeps all emission systems working; deactivating emission devices such as DPF, EGR or AdBlue is not road-legal in the EU and UK and is intended for off-road, motorsport or export use only.

With a normal driving style consumption usually stays the same or drops slightly: the extra torque at low rpm means less throttle for the same speed. Consumption goes up only if you actually use the additional power.

Yes. The original file is read and stored before any modification, so the vehicle can be returned to the factory calibration at any time.

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BMW
BMW 8 serie GC 840i 340hp
+60 HP
400 HP