Your Vehicle
Infiniti FX 5.0 V8 390hp
Technical Specifications
Power and torque increase
Stage 1: software remap only, no mechanical changes, fully reversible.
Stage 1: file 100 € online, installation quoted by the workshop Ask for a quote
Power HP
Torque Nm
Stage 1 for this engine: quote first, then the file online
The file costs 100 € online; the installation depends on how your ECU is worked on and the workshop confirms it. Ask for a quote: you receive the price and the link to buy the file. · terms
Power Graph
Infiniti FX 5.0 V8 390hp: da 390 a 417HP
Remapping Infiniti FX
MasterTuning develops remapping for Infiniti. La Infiniti FX 5.0 V8 390hp può passare da 390 HP a 417 HP con un incremento di 27 HP.
The development of each remap is customized by MasterTuning.
- 100% customised files with lifetime warranty
- Reference values for Stage 1: the file is developed on your vehicle and checked in the workshop
- Best performance, within safety margins
- Reduced fuel consumption
ECU Remapping Details Infiniti FX 5.0 V8 390hp
The Infiniti FX 5.0 V8 390hp is equipped with a petrol engine that produces 390 HP and 500 Nm of torque in its factory configuration. With MasterTuning's professional ECU remapping, this Infiniti can achieve 417 HP (+7%) and 532 Nm (+6%).
Our Stage 1 tuning for the FX 2008-2013 delivers an impressive gain of +27 HP and +32 Nm, optimizing the petrol engine's performance while maintaining reliability and staying within safe parameters.
The engine code VK50VE identifies this specific powerplant configuration. The Hitachi MEC140 ECU is professionally recalibrated to unlock hidden potential while preserving engine longevity.
With 390 HP from factory, this Infiniti FX is already a performance vehicle. Our remapping extracts even more potential, delivering exhilarating acceleration and enhanced driving dynamics for enthusiasts who demand the best.
Technical Specifications — Infiniti FX 5.0 V8 390hp
Factory technical data for the Infiniti FX 5.0 V8 390hp (2008-2013), used by MasterTuning engineers to develop a remap tailored to this specific powerplant. Figures shown are reference values for Stage 1; the file is developed on your vehicle and checked in the workshop.
| Engine code | VK50VE |
|---|---|
| ECU / Control unit | Hitachi MEC140 |
| Fuel | Petrol |
| Compression ratio | 10.9 |
| Bore × stroke | 95.5 X 87.7 mm |
| Stock power | 390 HP · 500 Nm |
| Remapped power (Stage 1) | 417 HP (+27) · 532 Nm (+32) |
Don't want to touch the ECU?
Rapid Dimsport add-on modules connect to the engine sensors with original connectors: they fit in a few hours and come off without a trace, leaving the factory software untouched. Useful on a leased car, one still under warranty or one you plan to sell soon. Check which ones fit your Infiniti FX.
Frequently Asked Questions - Infiniti FX
How much power can I gain from remapping my Infiniti FX?
With MasterTuning Stage 1, your Infiniti FX 5.0 V8 390hp can gain +27 HP (from 390 to 417 HP) and +32 Nm of torque. This represents a 7% increase in power.
Which ECU does the Infiniti FX 5.0 V8 390hp use?
The Infiniti FX 5.0 V8 390hp uses the Hitachi MEC140 engine control unit. MasterTuning recalibrates this ECU for Stage 1 and Stage 2.
What is the engine code of the Infiniti FX 5.0 V8 390hp?
The engine code of the Infiniti FX 5.0 V8 390hp is VK50VE. You can find it in the vehicle documents or on the engine plate.
Is ECU remapping safe for the Infiniti FX engine?
Yes, MasterTuning's remapping for the Infiniti FX 5.0 V8 390hp is developed within safe parameters. Each file is developed on your vehicle, checked in the workshop and stays within the mechanical limits of the VK50VE engine.
Is the Infiniti ECU remapping reversible?
Absolutely. The original factory calibration of your Infiniti FX is always backed up before remapping. The process is 100% reversible at any time.
Will remapping affect my Infiniti warranty?
ECU remapping may affect your manufacturer warranty. We recommend checking your specific warranty terms. Many of our customers choose to remap after the warranty period or accept this trade-off for the significant performance gains.
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