Expected gains of +20 BHP and +40 Nm torque
Get Your Free Quote ↓Considering an ECU remap for your Mercedes-Benz SL 500 V8 - 388hp? A Stage 1 remap can take this R230 - 2001 - 2011 petrol engine from 388 BHP to 408 BHP and from 530 Nm to 570 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 Mercedes-Benz SL can achieve.
The Mercedes-Benz SL 500 V8 - 388hp is a 5.5L naturally aspirated petrol engine producing 388 BHP and 530 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 408 BHP and 570 Nm — a gain of around 20 BHP (5%) and 40 Nm (8%).
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 |
|---|---|---|---|---|---|
| 350 V6 245hp | 245 → 258 | +13 | 350 → 373 |
| +23 |
| Moderate (4/10) |
| 500 V8 306hp | 306 → 326 | +20 | 460 → 485 | +25 | Limited (3.5/10) |
| 55 AMG 476hp | 476 → 540 | +64 | 700 → 820 | +120 | Moderate (5/10) |
| 600 V12 500hp | 500 → 578 | +78 | 800 → 910 | +110 | Moderate (4.5/10) |
| 55 AMG 500hp | 500 → 540 | +40 | 700 → 820 | +120 | Moderate (4.5/10) |
| 55 AMG 517hp | 517 → 540 | +23 | 700 → 820 | +120 | Moderate (4.5/10) |
| 600 V12 Turbo 517hp | 517 → 585 | +68 | 830 → 910 | +80 | Good (6/10) |
| 63 AMG 525hp | 525 → 540 | +15 | 630 → 660 | +30 | Limited (3/10) |
| 65 AMG Turbo 612hp | 612 → 670 | +58 | 1000 → 1100 | +100 | Moderate (5.5/10) |
| 65 AMG BlackSeries Turbo 670hp | 670 → 700 | +30 | 1000 → 1100 | +100 | Moderate (5.5/10) |
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.