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 Mercedes-Benz G 500 - 422hp? A Stage 1 remap can take this 2018 -> petrol engine from 422 BHP to 510 BHP and from 610 Nm to 820 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 Mercedes-Benz G can achieve.
Comparisons are calculated from our own recorded Stage 1 figures.
The Mercedes-Benz G 500 - 422hp is a 4.0L naturally aspirated petrol engine producing 422 BHP and 610 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 510 BHP and 820 Nm — a gain of around 88 BHP (21%) and 210 Nm (34%).
This engine has moderate remap suitability, with gains weighted towards torque — you will notice the difference most strongly in mid-range pulling power and in-gear acceleration. 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.. Large torque increase: drivetrain condition (clutch/gearbox) becomes more important at this level.
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 |
|---|---|---|---|---|---|
| 350 (2.0T) 258hp | 258 → 275 | +17 | 370 → 450 | +80 | Good (6/10) |
| 350d (3.0D) 286hp | 286 → 380 | +94 | 600 → 800 | +200 | Excellent (8/10) |
| 400d (3.0D) 330hp | 330 → 380 | +50 | 700 → 820 | +120 | Good (7/10) |
| 63 AMG 585hp | 585 → 660 | +75 | 850 → 1100 | +250 | Moderate (5.5/10) |
Get a personalised remap quote for your Mercedes-Benz G. 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.
