BHP+25 hp (6%)
Standard
420 hp
Tuned
445 hp
Torque+30 Nm (6%)
Standard
524 Nm
Tuned
554 Nm
Suitability
Limited (3.5/10)Gains Profile
Limited headroomHeadroom
LowFord Mustang GT 5.0 V8 420hp ECU Remapping
Considering an ECU remap for your Ford Mustang GT 5.0 V8 420hp? A Stage 1 remap can take this -> 2014 petrol engine from 420 BHP to 445 BHP and from 524 Nm to 554 Nm of torque (naturally aspirated). This engine scores 3.5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Ford Mustang can achieve.
How this engine compares
- 4thof 15 Ford Mustang engines by power gain
- 28%of the 9,842 engines we hold gain data for see a smaller power increase
- 17%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
The Ford Mustang GT 5.0 V8 420hp is a 5.0L naturally aspirated petrol engine producing 420 BHP and 524 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 445 BHP and 554 Nm — a gain of around 25 BHP (6%) and 30 Nm (6%).
This engine has limited 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.
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.
Other Mustang -> 2014 Engines
| Engine |
|---|