Mercedes-Benz S Class (W221) 2010> S63L 544bhp remap figures
Thinking of remapping a Mercedes-Benz S Class S63L 544bhp? The standard car makes 544bhp and 800Nm; with a Stage 1 remap from our Leicester workshop we expect around 649bhp and 988Nm, up to +105bhp and +188Nm.
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 | 544 bhp | 649 bhp | +105 bhp |
| Torque | 800 Nm | 988 Nm | +188 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 544 bhp | 800 Nm | |
| Stage 1Maximum software-only performance | 649 bhp | 988 Nm | +105 bhp +188 Nm |
| Stage 1 EcoPerformance with economy in mind | 623 bhp | 973 Nm | +79 bhp +173 Nm |
| Eco mapEconomy first | 614 bhp | 964 Nm | +70 bhp +164 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 S Class
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 MED17.7.1. We read the ECU on your car and compare it with the software listed here before any work starts, so you know what to expect before you commit.
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 S Class S63L 544bhp?
We expect 649bhp and 988Nm against 544bhp and 800Nm as standard: up to +105bhp and +188Nm. 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 S Class S63L 544bhp?
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: 623bhp and 973Nm expected. The Eco map is economy first: 614bhp and 964Nm. Both still sit above the standard 544bhp and 800Nm.
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 S Class figures
Other petrol variants
- S63L AMG 517bhp 2007-2010
- S600L Bi-Turbo 509bhp 2006>
- S65 Bi-Tubro 603bhp 2006-2010
- S65L 621bhp 2010-2013
- S500 382bhp 2006-2011
- S350 268bhp 2006>
- S280 227bhp 2006>
All petrol S Class (W221) variants · S Class (W221) 2006-2013 overview · All Mercedes-Benz figures