BHP+27 hp (7%)
Standard
390 hp
Tuned
417 hp
Torque+32 Nm (6%)
Standard
500 Nm
Tuned
532 Nm
Suitability
Limited (3.5/10)Gains Profile
Limited headroomHeadroom
LowInfiniti FX 5.0 V8 390hp ECU Remapping
Considering an ECU remap for your Infiniti FX 5.0 V8 390hp? A Stage 1 remap can take this 2008-2013 petrol engine from 390 BHP to 417 BHP and from 500 Nm to 532 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 Infiniti FX can achieve.
How this engine compares
- 4thof 6 Infiniti FX engines by power gain
- 35%of the 9,842 engines we hold gain data for see a smaller power increase
- 19%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
The Infiniti FX 5.0 V8 390hp is a 5.0L naturally aspirated petrol engine producing 390 BHP and 500 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 417 BHP and 532 Nm — a gain of around 27 BHP (7%) and 32 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 FX 2008-2013 Engines
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