BHP+15 hp (9%)
Standard
170 hp
Tuned
185 hp
Torque+18 Nm (8%)
Standard
222 Nm
Tuned
240 Nm
Suitability
Moderate (4/10)Gains Profile
BalancedHeadroom
LowBMW Z1 2.5i 170hp ECU Remapping
Considering an ECU remap for your BMW Z1 2.5i 170hp? A Stage 1 remap can take this All petrol engine from 170 BHP to 185 BHP and from 222 Nm to 240 Nm of torque (naturally aspirated). This engine scores 4/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your BMW Z1 can achieve.
How this engine compares
- 9%of the 9,842 engines we hold gain data for see a smaller power increase
- 7%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
The BMW Z1 2.5i 170hp is a 2.5L naturally aspirated petrol engine producing 170 BHP and 222 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 185 BHP and 240 Nm — a gain of around 15 BHP (9%) and 18 Nm (8%).
This engine has limited 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.
Considerations: Naturally aspirated engine: gains are usually limited; results vary widely.
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.
Technical Specifications
- Fuel Type
- Petrol
- Aspiration
- Naturally Aspirated
- Displacement
- 2.5L
- Capacity