Mercedes-Benz SL (R230) 2006> SL600 Bi-Turbo 509bhp remap figures
The Mercedes-Benz SL SL600 Bi-Turbo 509bhp (2006>) is a petrol 5.5L model making 509bhp and 830Nm as standard. After a Stage 1 ECU remap we expect 595bhp and 941Nm - up to 86bhp and 111Nm 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 | 509 bhp | 595 bhp | +86 bhp |
| Torque | 830 Nm | 941 Nm | +111 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 509 bhp | 830 Nm | |
| Stage 1Maximum software-only performance | 595 bhp | 941 Nm | +86 bhp +111 Nm |
| Stage 1 EcoPerformance with economy in mind | 574 bhp | 932 Nm | +65 bhp +102 Nm |
| Eco mapEconomy first | 567 bhp | 927 Nm | +58 bhp +97 Nm |
Who is the Stage 1 map for?
- Drivers who want a noticeably quicker car from a software-only change, with no new parts.
- Daily drivers who want stronger mid-range pull and a sharper throttle.
- Anyone who wants the biggest gain we list without fitting hardware.
What this means for your SL
On a turbocharged petrol engine a remap adjusts boost, ignition timing and fuelling together, so both power and mid-range torque rise and the car pulls harder out of corners and junctions.
Engine management is by a Bosch ME2.8 unit. 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 SL SL600 Bi-Turbo 509bhp?
We expect 595bhp and 941Nm against 509bhp and 830Nm as standard: up to +86bhp and +111Nm. 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 SL600 Bi-Turbo 509bhp?
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: 574bhp and 932Nm expected. The Eco map is economy first: 567bhp and 927Nm. Both still sit above the standard 509bhp and 830Nm.
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
- SL 600 BiTurbo 509bhp 2006>
- SL55 AMG 510bhp 2006-2008
- SL63 AMG 517bhp 2008-2011
- SL55 AMG 500bhp 2002-2006
- SL600 Bi-Turbo 500bhp 2003-2006
- SL 500 382bhp 2008>
- SL 350 310bhp 2008>
- SL 500 306bhp 2002>
- SL 350 245bhp 2003>
- SL 300 227bhp 2009>
All petrol SL (R230) variants · SL (R230) 2002-2011 overview · All Mercedes-Benz figures