BMW 8 serie GC 2019 -> 840i 340hp
Real standard and upgraded performance figures for the 840i 340hp engine in the BMW 8 serie GC 2019 ->.
The BMW 8 serie GC 2019 -> 840i 340hp is one of the engines we work on regularly — here's what a stage remap typically changes for it.
| Horsepower (HP) | Torque (Nm) | |
|---|---|---|
| Standard | 340 | 500 |
| Stage 1 | 400 | 580 |
| Stage 2 | 430 | 620 |
- Make
- BMW
- Model
- 8 serie GC
- Generation
- 2019 ->
- Engine
- 840i 340hp
- Fuel type
- Turbo-Petrol
Frequently asked questions
Is Stage 1 tuning safe for the BMW 8 serie GC 2019 -> 840i 340hp?
Yes — Stage 1 for this engine is a software-only remap calibrated to stay within its stock mechanical limits (turbo, clutch, fueling), so no hardware changes are required.
How much more power does the 840i 340hp make after tuning?
Standard output is 340 HP / 500 Nm; Stage 1 on this engine typically reaches 400 HP / 580 Nm. Exact results can vary slightly with fuel quality and vehicle condition.
How long does a BMW 8 serie GC 2019 -> 840i 340hp remap take?
Once your original file is uploaded through the member panel, most requests for this engine are completed within a few hours.
Can the 840i 340hp be reverted to its original file?
Yes — we keep the original file on record for the request, so the ECU can be put back to stock at any time.