GAD Tuning

Bespoke ECU Remapping

BMW F80 M3 Remapping

BMW F80 M3 Remapping

Here at GAD Tuning we invest heavily in having the latest calibration software, dyno cell test facility, main dealer diagnostic tools and communication tools to make the very best and safest calibrations for your BMW M3. We spent hundreds of hours testing calibrations and monitoring results with many cars including BMW M3s all over Europe through other clients.

The BMW F80 has the latest Twin-Turbo power plant designated as the S65 engine which is a 3.0 Litre inline 6 cylinder with two turbo chargers couple with a really efficient water to air charge cooler. Running the latest Bosch MEVD17.2.

We first start by getting your BMW M3 in the workshop and run full diagnostics of all systems in the vehicle. This will give us a clear indication to weather we proceed with the recalibration and dyno process or not. After getting the all clear we actually do something that many tuning firms do not do and that's to get the BMW M3 in the Dyno cell and peel off a lot of residual heat from the drive to us. This means that we wont be battling temperatures and skewing results. This will give us accurate and repeatable results to get a good base line for what we are working with.

From this the calibration process begins and we pull stock OEM data from the vehicle and start the calibration process. This can take a few hours with many calibrations and multiple sweep tests and steady state load testing to get the most from your BMW M3 safely. Only after data logging multiple channels and analysing the data we settle and what we think is the safe power and torque output of your vehicle.

Things monitored while tuning your BMW M3:

Along with increasing the performance of your BMW M3 we can also offer a plethora of coding updates due to the hardware being shared with many models. Including...

All taking your vehicle to the next level.

Optional extras included free of charge are:

Horse power and Torque improvements

Being that every application is custom written and dyno results can vary on different days below is a brief estimation we would expect to see:


Stock 425bhp and 550nm
Stage 1 510bhp and 680nm
Stage 2/2.5 530bhp+ and 730nm+

BMW M3 Competition pack

Stock 450bhp and 550nm
Stage 1 510bhp and 680nm
Stage 2/2.5 530bhp+ and 730nm+


Stock 460bhp and 550nm
Stage 1 510bhp and 680nm
Stage 2/2.5 530bhp+ and 730nm+

Below are examples of dyno plots of Stage 1 and Stage 2 calibrations and clients vehicles on our rolling road.

ECU remapping your BMW M3 is a short-term investment built for long-term gain. At GAD Tuning, we specialise in the enhancement of high-end, high-performance brands and models so as to guarantee they are reaching their full potential when you are on the road. Whether it’s a Mercedes, BMW or Audi, or even a Porsche, Ferrari or Bentley, our vehicle tuning service will help maintain the quality of motoring that your vehicle already embodies. That feeling of knowing your engine is running at the pinnacle of its powers is one that is rarely rivaled, and with engine remapping Essex you can guarantee that will be the case every time you set foot in your supercar. What makes us stand out from our competitors? Our in-house team ensure each and every development is tailored specifically to the requirements of your vehicle thanks to our cutting-edge technology. The state-of-the-art communications equipment we have here at GAD Tuning mean that our London ECU remapping services can be carried out to the highest standard. Many companies will simply remove the maps and then install generic software that prevents you from accessing the full benefits ECU remapping Essex can offer, meaning your Lamborghini or Bugatti may never fulfill its full potential.

How much power & Torque could you gain from your BMW M3?

Use our handly tool to find out