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BMW · Stage 1

BMW F21 M140i Stage 1 with Pops & Bangs

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

Published vehicle figures

Stock

340hp

500Nm

Stage 1

420hp

600Nm

Difference

+80hp

+100Nm

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

BMW F21 M140i Stage 1 with Pops & Bangs

This BMW F21 M140i went from 340hp and 500Nm to 420hp and 600Nm with our Stage 1 calibration, while the car was in for a service.

B58 tuning gains

The B58 3.0 straight-six is one of the best engines BMW has made for tuning, and Stage 1 brings a big increase in power and torque with sharper throttle response.

Add-ons

  • Speed limiter solution
  • Pops and bangs
  • Sports displays calibrated

Why is the M140i so popular to tune?

Its B58 engine has huge headroom on standard hardware. We tune M140is at your home or workplace across Bristol, North Somerset, Somerset and South Wales.

About this job

The results

This BMW F21 M140i now makes 420hp, up from 340hp as standard: 80hp more, an increase of around 24%.

Torque rose from 500Nm to 600Nm (+100Nm), 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 M140i tuning Check your gains
BMW F21 M140i Stage 1 with Pops & Bangs photographed by MTechTuning
  • 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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More BMW work, with published figures.

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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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