BHP+30 hp (9%)
Standard
340 hp
Tuned
370 hp
Torque+50 Nm (11%)
Standard
450 Nm
Tuned
500 Nm
Suitability
Moderate (5.5/10)Gains Profile
BalancedHeadroom
LowBMW Z4 3.5is - N54 - 340hp ECU Remapping
Considering an ECU remap for your BMW Z4 3.5is - N54 - 340hp? A Stage 1 remap can take this E89 - 2009 - 2018 petrol engine from 340 BHP to 370 BHP and from 450 Nm to 500 Nm of torque (turbocharged). 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 Z4 can achieve.
How this engine compares
- 11thof 26 BMW Z4 engines by power gain
- 39%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 3.5is - N54 - 340hp is a 3.0L turbocharged petrol engine producing 340 BHP and 450 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 370 BHP and 500 Nm — a gain of around 30 BHP (9%) and 50 Nm (11%).
This engine has moderate remap suitability, with a balanced spread of gains across both power and torque — providing a noticeable improvement across the rev range. The tuning headroom is classified as limited, based on the percentage gain available from the factory output.
From a technical perspective, the transmission is many variants use zf 5/6-speed automatics (where fitted); manuals also exist. at this torque level, transmission and driveline servicing history becomes especially important..
Considerations: Turbo petrol: fuel quality and cooling can influence repeatable performance.. 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
!Turbo petrol: fuel quality and cooling can influence repeatable performance.
!High tuned torque: check transmission torque capacity and service history.