Mercedes-Benz CL 2007-2010 65 Bi-Turbo 603bhp remap figures
Thinking of remapping a Mercedes-Benz CL 65 Bi-Turbo 603bhp? The standard car makes 603bhp and 1001Nm; with a Stage 1 remap from our Leicester workshop we expect around 665bhp and 1090Nm, up to +62bhp and +89Nm.
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 | 603 bhp | 665 bhp | +62 bhp |
| Torque | 1001 Nm | 1090 Nm | +89 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 603 bhp | 1001 Nm | |
| Stage 1Maximum software-only performance | 665 bhp | 1090 Nm | +62 bhp +89 Nm |
| Stage 1 EcoPerformance with economy in mind | 650 bhp | 1083 Nm | +47 bhp +82 Nm |
| Eco mapEconomy first | 645 bhp | 1078 Nm | +42 bhp +77 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 CL
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.
This car is listed with a Bosch ME9.7 engine control 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 CL 65 Bi-Turbo 603bhp?
We expect 665bhp and 1090Nm against 603bhp and 1001Nm as standard: up to +62bhp and +89Nm. 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 CL 65 Bi-Turbo 603bhp?
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: 650bhp and 1083Nm expected. The Eco map is economy first: 645bhp and 1078Nm. Both still sit above the standard 603bhp and 1001Nm.
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 CL figures
Other petrol variants
- 65 Bi-Turbo 621bhp 2010>
- 63 Bi-Turbo 544bhp 2010>
- 63 AMG 517bhp 2007-2010
- 600 509bhp 2007-2009
- 500 382bhp 2007-2010
All petrol CL variants · CL 2007-2014 overview · All Mercedes-Benz figures