BHP+80 hp (15%)
Standard
540 hp
Tuned
620 hp
Torque+140 Nm (26%)
Standard
540 Nm
Tuned
680 Nm
Suitability
Moderate (5.5/10)Gains Profile
Torque-focusedHeadroom
HighMcLaren 540C 3.8 V8 540hp ECU Remapping
Considering an ECU remap for your McLaren 540C 3.8 V8 540hp? A Stage 1 remap can take this All petrol engine from 540 BHP to 620 BHP and from 540 Nm to 680 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 McLaren 540C can achieve.
How this engine compares
- 95%of the 9,842 engines we hold gain data for see a smaller power increase
- 91%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
The McLaren 540C 3.8 V8 540hp is a 3.8L naturally aspirated petrol engine producing 540 BHP and 540 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 620 BHP and 680 Nm — a gain of around 80 BHP (15%) and 140 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.
Considerations: Naturally aspirated engine: gains are usually limited; results vary widely.. 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.
!High tuned torque: check transmission torque capacity and service history.
!Large torque increase: drivetrain condition (clutch/gearbox) becomes more important at this level.