Considering an ECU remap for your Infiniti M 5.6 V6 420hp? A Stage 1 remap can take this All petrol engine from 420 BHP to 450 BHP and from 565 Nm to 591 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 M can achieve.
The Infiniti M 5.6 V6 420hp is a 5.6L naturally aspirated petrol engine producing 420 BHP and 565 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 450 BHP and 591 Nm — a gain of around 30 BHP (7%) and 26 Nm (5%).
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.
| Engine | BHP | Gain | Torque | Gain | Score |
|---|---|---|---|---|---|
| 3.0d 211hp | 211 → 280 | +69 | 550 → 600 | +50 | Good (7.5/10) |
| 3.0d 238hp | 238 → 280 | +42 | 550 → 600 | +50 | Good (6.5/10) |
Get a personalised remap quote for your Infiniti M. We'll connect you with a trusted professional in your area.
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 before proceeding.
