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BMW M3 Remapping

Select the generation and exact engine matching your BMW M3. Available figures are estimates; STX Tuning checks the actual vehicle and programming requirements before booking.

4.9/5500+ Google ReviewsSee Google Reviews

M3

F80 · 3.0 Petrol · S55 · 2014-2016

431 PS stock550 Nm stockStage 1 est.: 520 PS / 700 NmStage 2 est.: 560 PS / 750 Nm

Stage 1: £599

M3

G80 · 3.0 Petrol · S58 · 2021-Present

480 PS stock550 Nm stockStage 1 est.: 580 PS / 720 NmStage 2 est.: 630 PS / 780 Nm

Stage 1: £699

Which BMW M3 version do you own?

Compare the generation, year range, engine code and factory power, not the model name alone. These listed versions have 431 PS, 480 PS factory entries. Different outputs can use different turbochargers, control units and transmissions. Registration and software identification are checked before a calibration is agreed.

Open the exact engine record for the recorded ECU family, gearbox options and supporting hardware. Stage 2 values only apply to the specified configuration; unavailable estimates should not be borrowed from another engine. A newer software revision may also change the programming or unlock method.

For mobile enquiries, include the working postcode and parking arrangements. Physical upgrades and some ECU preparation require Slough workshop access. Output figures remain library estimates until supported by documented evidence for the exact setup.

Understand the hardware before choosing Stage 2

Get Your BMW M3 Remap Quote

Select one or more services and send your enquiry to STX Tuning.

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Call STX: 01753 439130
  • 4.9/5 Google rating · 535 reviews
  • Slough workshop
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Google Customer Reviews

Don't Just Take Our Word For It.

See what customers say about their experience with STX Tuning.

Google Reviews

4.9

535 Google Reviews

  • Chris Green

    Aug 2026

    Contacted these guys and they came out within 2 days fixed the car and now all is perfect again really happy with the remap done on my car too very polite, efficient service and would highly recommended

    Posted on Google · view on our Google profile

  • Tiinkerj

    Jul 2026

    I wanted to leave a genuine review, I got my car remapped on the 5th June 2026. Making the appointment was very easy, I didn’t have to wait too long for an appointment and had the option for someone to come to my house if needed. The remap was done within an hour or so. My light did come back on a week after the remap was done, but I was able to clear it with no issues and last weekend I took a 4 hour round trip to the beach and the light did not come back on when usually it does after about 1hr into a drive. The point of my long review is I highly recommend this company and I am very happy with the service provided.

    Posted on Google · view on our Google profile

  • Oscar Rapala

    Jun 2026

    First time tuning my car. Didn’t know what to expect but it was amazing. They explained everything to me clearly, how it works etc and before you know it my car was ready. 10/10 polite service. Will be coming back in the future with serious motors, can tell these guys are professionals judging by tons of performance cars outside.

    Posted on Google · view on our Google profile
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