BHP+15 hp (4%)
Standard
400 hp
Tuned
415 hp
Torque+25 Nm (5%)
Standard
500 Nm
Tuned
525 Nm
Suitability
Limited (3/10)Gains Profile
Limited headroomHeadroom
LowBMW Z8 5.0 V8 400hp ECU Remapping
Considering an ECU remap for your BMW Z8 5.0 V8 400hp? A Stage 1 remap can take this 2002 - 2003 petrol engine from 400 BHP to 415 BHP and from 500 Nm to 525 Nm of torque (naturally aspirated). This engine scores 3/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your BMW Z8 can achieve.
How this engine compares
- 9%of the 9,842 engines we hold gain data for see a smaller power increase
- 14%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
The BMW Z8 5.0 V8 400hp is a 5.0L naturally aspirated petrol engine producing 400 BHP and 500 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 415 BHP and 525 Nm — a gain of around 15 BHP (4%) and 25 Nm (5%).
This engine has low remap suitability, though the available headroom is limited, so gains are modest compared to higher-output variants. 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: 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.