Data under review — The figures shown for this engine variant are currently being verified. They may be updated as we refine our data.
Considering an ECU remap for your Renault Trucks Premium 420hp? A Stage 1 remap can take this All diesel engine from 420 BHP to 510 BHP and from 1870 Nm to 2300 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 Renault Trucks Premium can achieve.
Comparisons are calculated from our own recorded Stage 1 figures.
The Renault Trucks Premium 420hp is a naturally aspirated unknown fuel type engine producing 420 BHP and 1870 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 510 BHP and 2300 Nm — a gain of around 90 BHP (21%) and 430 Nm (23%).
This engine has moderate remap suitability, with a balanced spread of gains across both power and torque — providing a noticeable improvement across the rev range. 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.. Unusually high gain for NA engine: treat as an estimate and verify against the exact engine variant.. 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 |
|---|---|---|---|---|---|
| 270hp | 270 → 355 | +85 | 900 → 1300 | +400 | Good (6.5/10) |
| 320hp | 320 → 410 | +90 | 1210 → 1600 | +390 | Good (6.5/10) |
| 340hp | 340 → 410 | +70 | 1300 → 1550 | +250 | Good (7/10) |
| 370hp | 370 → 450 | +80 | 1670 → 2100 | +430 | Moderate (5.5/10) |
| 430hp | 430 → 515 | +85 | 2040 → 2450 | +410 | Good (7/10) |
| 450hp | 450 → 486 | +36 | 2140 → 2350 | +210 | Moderate (5.5/10) |
Get a personalised remap quote for your Renault Trucks Premium. 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.
