BHP+39 hp (17%)
Standard
231 hp
Tuned
270 hp
Torque+90 Nm (26%)
Standard
350 Nm
Tuned
440 Nm
Suitability
Moderate (5.5/10)Gains Profile
Torque-focusedHeadroom
HighBMW 1 Series 125i 231hp ECU Remapping
Considering an ECU remap for your BMW 1 Series 125i 231hp? A Stage 1 remap can take this F52 - 2018 -> petrol engine from 231 BHP to 270 BHP and from 350 Nm to 440 Nm of torque (naturally aspirated). This engine scores 5.5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your BMW 1 Series can achieve.
How this engine compares
- 43rdof 68 BMW 1 Series engines by power gain
- 62%of the 9,842 engines we hold gain data for see a smaller power increase
- 74%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
The BMW 1 Serie 125i 231hp is a 2.0L naturally aspirated petrol engine producing 231 BHP and 350 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 270 BHP and 440 Nm — a gain of around 39 BHP (17%) and 90 Nm (26%).
This engine has moderate remap suitability, with gains weighted towards torque — you will notice the difference most strongly in mid-range pulling power and in-gear acceleration. The tuning headroom is classified as high, based on the percentage gain available from the factory output.
From a technical perspective, the transmission is many variants use zf 8-speed automatic (where fitted); manuals also exist..
Considerations: Naturally aspirated engine: gains are usually limited; results vary widely.. Unusually high gain for NA engine: treat as an estimate and verify against the exact engine variant.. High tuned torque: check transmission torque capacity and service history.. Large torque increase: drivetrain condition (clutch/gearbox) becomes more important at this level.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method. We recommend discussing your specific vehicle with a qualified remap professional.
Considerations
!Naturally aspirated engine: gains are usually limited; results vary widely.
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