Considering an ECU remap for your Mercedes-Benz SL 500 - 456hp? A Stage 1 remap can take this 2016 - 2021 petrol engine from 456 BHP to 485 BHP and from 700 Nm to 850 Nm of torque (naturally aspirated). This engine scores 4.5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Mercedes-Benz SL can achieve.
The Mercedes-Benz SL 500 - 456hp is a 4.7L naturally aspirated petrol engine producing 456 BHP and 700 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 485 BHP and 850 Nm — a gain of around 29 BHP (6%) and 150 Nm (21%).
This engine has limited 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 moderate, 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 |
|---|---|---|---|---|---|
| 400 - 367hp | 367 → 420 | +53 | 500 → 590 |
| +90 |
| Moderate (5/10) |
| 63 AMG V8 BiTurbo 585hp | 585 → 660 | +75 | 900 → 1100 | +200 | Good (6.5/10) |
| 65 AMG V12 BiTurbo 630hp | 630 → 740 | +110 | 1000 → 1300 | +300 | Good (7/10) |
Get a personalised remap quote for your Mercedes-Benz SL. 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.
