BMW 3 serie E90/E91 - 2005 - 2010 M3 420hp

Real standard and upgraded performance figures for the M3 420hp engine in the BMW 3 serie E90/E91 - 2005 - 2010.

Standard vs. upgraded performance for the BMW 3 serie E90/E91 - 2005 - 2010 M3 420hp, based on real files we've processed for this exact engine.

Horsepower (HP)Torque (Nm)
Standard420400
Stage 1440430
Stage 2446450
Make
BMW
Model
3 serie
Generation
E90/E91 - 2005 - 2010
Engine
M3 420hp
Fuel type
Turbo-Petrol

Frequently asked questions

Is Stage 1 tuning safe for the BMW 3 serie E90/E91 - 2005 - 2010 M3 420hp?

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 M3 420hp make after tuning?

Standard output is 420 HP / 400 Nm; Stage 1 on this engine typically reaches 440 HP / 430 Nm. Exact results can vary slightly with fuel quality and vehicle condition.

How long does a BMW 3 serie E90/E91 - 2005 - 2010 M3 420hp 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 M3 420hp 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.