BMW 3 serie E90/E91 - 2005 - 2010 335i - N55 Twinscroll - 306hp

Real standard and upgraded performance figures for the 335i - N55 Twinscroll - 306hp engine in the BMW 3 serie E90/E91 - 2005 - 2010.

The BMW 3 serie E90/E91 - 2005 - 2010 335i - N55 Twinscroll - 306hp is one of the engines we work on regularly — here's what a stage remap typically changes for it.

Horsepower (HP)Torque (Nm)
Standard306400
Stage 1360520
Stage 2385540
Make
BMW
Model
3 serie
Generation
E90/E91 - 2005 - 2010
Engine
335i - N55 Twinscroll - 306hp
Fuel type
Turbo-Petrol

Frequently asked questions

Is Stage 1 tuning safe for the BMW 3 serie E90/E91 - 2005 - 2010 335i - N55 Twinscroll - 306hp?

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 335i - N55 Twinscroll - 306hp make after tuning?

Standard output is 306 HP / 400 Nm; Stage 1 on this engine typically reaches 360 HP / 520 Nm. Exact results can vary slightly with fuel quality and vehicle condition.

How long does a BMW 3 serie E90/E91 - 2005 - 2010 335i - N55 Twinscroll - 306hp 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 335i - N55 Twinscroll - 306hp 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.