danny george
Mar 2025
the staffat stx tuning was so excellent dealing with the problem i been having with ad blu and fixed issue in an hr highly reccomened
Posted on Google · view on our Google profileBMW X3 M50 xDrive G45 ECU Remapping
BMW X3 M50 xDrive G453.0 B58 MHEV · 2024–Present
Stage 1 £599
Get my quote →The BMW X3 M50 xDrive G45 (2024 to Present) leaves the factory with 398 PS and 580 Nm from its 3.0 petrol engine. Our Stage 1 estimate takes it to 470 PS and 650 Nm, roughly 18% more power and 12% more torque.
BMW
ECU confirmed on inspection
X3 M50 xDrive
G45 · 3.0
Stage 1 estimate
470 PS
STX Tuning
Stage 1 price
£599
Stage 1 ECU remap
Estimated gain
+72 PS · +70 Nm
Power
Stock
398 PS
Stage 1
470 PS
Torque
Stock
580 Nm
Stage 1
650 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 TuningWhat 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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