Debby Cunliffe
Jun 2025
Fantastic service. Came to my home on a Sunday to remap my car. Great job done and lifetime warranty plus interest free payment facility over 4 months available. Highly recommend
Posted on Google · view on our Google profileBMW M4 CS F82 ECU Remapping
BMW M4 CS F823.0 S55 · 2017–2019
Stage 1 £599
Get my quote →The BMW M4 CS F82 (2017 to 2019) leaves the factory with 460 PS and 600 Nm from its 3.0 petrol engine. Our Stage 1 estimate takes it to 530 PS and 700 Nm, roughly 15% more power and 17% more torque.
BMW
ECU confirmed on inspection
M4 CS
F82 · 3.0
Stage 1 estimate
530 PS
STX Tuning
Stage 1 price
£599
Stage 1 ECU remap
Estimated gain
+70 PS · +100 Nm
Power
Stock
460 PS
Stage 1
530 PS
Torque
Stock
600 Nm
Stage 1
700 Nm
Figures are STX Tuning estimates for a healthy standard car, not a dyno result for your vehicle. Power is shown in PS. These are existing vehicle library estimates, not independently measured results.
WhatsApp STX TuningTuning the F8x M3 and M4
F80 M3 and F82/F83 M4 models use the S55 twin turbocharged straight six, a different engine and ECU platform from the later S58 cars. Standard, Competition and CS versions are listed separately.
Gearbox type matters on these cars, so tell us whether yours is manual, DCT or automatic and whether anything has already been changed.
- Is an F80 M3 tuned the same as a G80?
- No. The S55 and S58 engines use different ECUs and calibrations.
- Do Competition models have their own page?
- Yes. Their factory outputs differ, so each has its own figures and price.
What we do
More than just ECU remapping.
From Stage 1 and Stage 2 ECU remapping to gearbox tuning and supporting performance upgrades, STX Tuning offers specialist vehicle software and tuning services for compatible petrol and diesel cars and vans.
Explore the available options for your exact vehicle at our Slough workshop, with suitable mobile ECU remapping appointments available across selected surrounding areas.
- Stage 1 & Stage 2 ECU RemappingStage 1Stage 2
- Turbo Petrol ECU Tuning
- Turbo Diesel ECU Tuning
- Pops & Bangs
- Performance Remapping
- Economy ECU Remapping
Not sure which tuning service you need?
Tell us what you drive and what you'd like to achieve. We'll check your vehicle and help you explore the available options.
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