BHP+20 hp (8%)
Standard
258 hp
Tuned
278 hp
Torque+50 Nm (13%)
Standard
400 Nm
Tuned
450 Nm
Suitability
Moderate (4.5/10)Gains Profile
Torque-focusedHeadroom
MediumBMW Z4 30i 258hp ECU Remapping
Considering an ECU remap for your BMW Z4 30i 258hp? A Stage 1 remap can take this G29 - 2019 -> petrol engine from 258 BHP to 278 BHP and from 400 Nm to 450 Nm of torque (naturally aspirated). This engine scores 4.5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your BMW Z4 can achieve.
How this engine compares
- 16thof 26 BMW Z4 engines by power gain
- 14%of the 9,842 engines we hold gain data for see a smaller power increase
- 27%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
The BMW Z4 30i 258hp is a 2.0L naturally aspirated petrol engine producing 258 BHP and 400 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 278 BHP and 450 Nm — a gain of around 20 BHP (8%) and 50 Nm (12%).
This engine has limited 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 moderate, 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. at this torque level, transmission and driveline servicing history becomes especially important..
Considerations: Naturally aspirated engine: gains are usually limited; results vary widely.. High tuned torque: check transmission torque capacity and service history.
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.
!High tuned torque: check transmission torque capacity and service history.