Mercedes-Benz SL (R231) 2016> 400 361bhp remap figures
The Mercedes-Benz SL 400 361bhp (2016>) is a petrol 3.0L model making 361bhp and 500Nm as standard. After a Stage 1 ECU remap we expect 449bhp and 703Nm - up to 88bhp and 203Nm more than stock.
Choose your map
Stage 1 remap figures
A Stage 1 remap is a software-only change to the ECU on an otherwise standard car. It needs no extra parts, which makes it the usual starting point.
| Stock | Vanguard expected | Expected gain, up to | |
|---|---|---|---|
| Power | 361 bhp | 449 bhp | +88 bhp |
| Torque | 500 Nm | 703 Nm | +203 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 361 bhp | 500 Nm | |
| Stage 1Maximum software-only performance | 449 bhp | 703 Nm | +88 bhp +203 Nm |
| Stage 1 EcoPerformance with economy in mind | 427 bhp | 687 Nm | +66 bhp +187 Nm |
| Eco mapEconomy first | 420 bhp | 677 Nm | +59 bhp +177 Nm |
Who is the Stage 1 map for?
- Drivers who want a sharper throttle and a small, honest gain from software alone.
- Owners who would rather keep the car standard in every other way.
- Anyone who wants the fullest software-only map for this engine, accepting that the gain is modest without a turbocharger.
What this means for your SL
Naturally aspirated petrol engines have no boost to raise, so gains from software alone are more modest than on a turbocharged car and come from fuelling, ignition and throttle response.
The ECU recorded for this variant is a Bosch MED17.7.3.1. Newer ECUs often protect their software, so we read the exact unit and version on the car before confirming the figures on this page.
We remap at our Belgrave Gate workshop in Leicester, or at your home or work within 30 miles, and every job starts with a diagnostic check.
Please note: these are expected figures, not guarantees. Real results vary with the condition of the vehicle, the ECU software version, fuel quality and the hardware fitted. Some options - including Stage 2 and anything that needs extra hardware - are for off-road or competition use only. We check every vehicle first and confirm what is achievable before any work starts.
Figures reviewed 22 October 2026.
Stage 1 questions
How much power does the Stage 1 map give the Mercedes-Benz SL 400 361bhp?
We expect 449bhp and 703Nm against 361bhp and 500Nm as standard: up to +88bhp and +203Nm. These are expected figures, and we confirm what is achievable on your own car after a diagnostic check.
Does a Stage 1 remap need any extra parts on the Mercedes-Benz SL 400 361bhp?
No. Stage 1 is a software-only change to the ECU on an otherwise standard car.
Is there a gentler map than Stage 1 for this engine?
Yes, two. Stage 1 Eco is performance with economy in mind: 427bhp and 687Nm expected. The Eco map is economy first: 420bhp and 677Nm. Both still sit above the standard 361bhp and 500Nm.
Do I need to tell my insurer about a remap?
Yes. A remap is a modification, so you should declare it to your insurer.
More Mercedes-Benz SL figures
Other petrol variants
- 400 328bhp 2014>
- SL500 BiTurbo 428bhp 2012>
- 500 448bhp 2014>
- SL63 AMG BiTurbo 537bhp 2012>
- SL63 AMG BiTurbo PP 577bhp 2012>
- SL65 AMG 621bhp 2012>
All petrol SL (R231) variants · SL (R231) 2012> overview · All Mercedes-Benz figures