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 GL 400 - 333hp? A Stage 1 remap can take this X166 - 2012 -> petrol engine from 333 BHP to 400 BHP and from 480 Nm to 580 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 GL can achieve.
Comparisons are calculated from our own recorded Stage 1 figures.
The Mercedes-Benz GL 400 - 333hp is a 3.0L naturally aspirated petrol engine producing 333 BHP and 480 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 400 BHP and 580 Nm — a gain of around 67 BHP (20%) and 100 Nm (21%).
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 |
|---|---|---|---|---|---|
| 350 Bluetec 258hp | 258 → 290 | +32 | 620 → 690 | +70 | Good (6.5/10) |
| 450 367hp | 367 → 510 | +143 | 500 → 820 | +320 | Good (6.5/10) |
| 500 - 435hp | 435 → 510 | +75 | 700 → 820 | +120 | Moderate (5/10) |
| GL 63 AMG - 558hp | 558 → 620 | +62 | 760 → 900 | +140 | Moderate (4.5/10) |
Get a personalised remap quote for your Mercedes-Benz GL. 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.
