BMW 8 serie G15 - 2018 -> 840d MHEV 340hp

Real standard and upgraded performance figures for the 840d MHEV 340hp engine in the BMW 8 serie G15 - 2018 ->.

Standard vs. upgraded performance for the BMW 8 serie G15 - 2018 -> 840d MHEV 340hp, based on real files we've processed for this exact engine.

Horsepower (HP)Torque (Nm)
Standard340700
Stage 1380750
Stage 2400775
Make
BMW
Model
8 serie
Generation
G15 - 2018 ->
Engine
840d MHEV 340hp
Fuel type
Turbo-Diesel

Frequently asked questions

Is Stage 1 tuning safe for the BMW 8 serie G15 - 2018 -> 840d MHEV 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 840d MHEV 340hp make after tuning?

Standard output is 340 HP / 700 Nm; Stage 1 on this engine typically reaches 380 HP / 750 Nm. Exact results can vary slightly with fuel quality and vehicle condition.

How long does a BMW 8 serie G15 - 2018 -> 840d MHEV 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 840d MHEV 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.