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BMW · Stage 1

BMW 330i 258hp Stage 1 (January 2026)

A mobile Stage 1 calibration by MTechTuning, with dealer-level diagnostics before and after tuning.

Published vehicle figures

Stock

258hp

300Nm

Stage 1

278hp

320Nm

Difference

+20hp

+20Nm

Figures published for this vehicle. Results vary with model year, software, fuel and condition, so we confirm what suits your car before quoting.

BMW 330i 258hp Stage 1 (January 2026)

This BMW 330i went from 258hp and 300Nm to 278hp and 320Nm with our Stage 1 calibration.

Smooth and reliable

The calibration sharpens throttle response and mid-range pull while staying well within safe limits, so the car feels stronger through the rev range without sacrificing reliability.

ECU software and options

  • Stage 1 calibration
  • Speed limiter solution
  • Original ECU file backed up for a future return to standard

The work was carried out with professional AutoTuner equipment, with a diagnostic health check before and after.

Can you tune a 330i at home?

Yes. We come to your home or workplace across Bristol, North Somerset, Somerset and South Wales.

About this job

The results

This BMW 330i 258hp now makes 278hp, up from 258hp as standard: 20hp more, an increase of around 8%.

Torque rose from 300Nm to 320Nm (+20Nm), which is what you feel most in everyday driving: stronger pull from low revs and easier overtaking.

What the work involved

Stage 1 is calibrated for a car with standard hardware. By refining boost, fuelling, timing and torque requests within the engine's safe limits, it delivers stronger, smoother acceleration and sharper throttle response.

How we carried it out

  • Diagnostic scan for stored faults before any work
  • Stabilised power supply connected while programming
  • Original software read and saved, so the car can be returned to standard
  • Calibration written, then the car checked again afterwards

Thinking about the same for your BMW?

We come to you from our Weston-super-Mare base, across Bristol, Somerset, Gloucestershire, Wiltshire, South Wales and parts of Devon and Dorset. Results depend on the exact car, so we confirm what suits yours before quoting.

BMW 320i and 330i tuning Check your gains
  • Dealer-level diagnostics before and after
  • Fully mobile, at home or work
  • Lifetime software warranty and support
  • 14-day money-back guarantee

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Talk through your vehicle

Find out what your car can do.

Share your registration, mileage and what you would like to improve. We're always online to quote and reply, and we'll confirm what is suitable before booking, then come to you. Fully mobile from our Weston-super-Mare base across Bristol, Somerset, Gloucestershire, Wiltshire, South Wales and parts of Devon and Dorset.

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