Bentley Arnage 2006-2009 6.8 V8 Twin turbo 450bhp remap figures
The Bentley Arnage 6.8 V8 Twin turbo 450bhp (2006-2009) is a petrol 6.8L model making 450bhp and 875Nm as standard. After a Stage 1 ECU remap we expect 525bhp and 995Nm - up to 75bhp and 120Nm 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 | 450 bhp | 525 bhp | +75 bhp |
| Torque | 875 Nm | 995 Nm | +120 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 450 bhp | 875 Nm | |
| Stage 1Maximum software-only performance | 525 bhp | 995 Nm | +75 bhp +120 Nm |
| Stage 1 EcoPerformance with economy in mind | 506 bhp | 985 Nm | +56 bhp +110 Nm |
| Eco mapEconomy first | 500 bhp | 979 Nm | +50 bhp +104 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 Arnage
Turbocharged petrol engines respond well to calibration changes: boost and timing are the main levers, and the result is a flatter, stronger torque curve as well as a higher peak.
The ECU recorded for this variant is a Bosch ME7.1.1. 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 Bentley Arnage 6.8 V8 Twin turbo 450bhp?
We expect 525bhp and 995Nm against 450bhp and 875Nm as standard: up to +75bhp and +120Nm. 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 Bentley Arnage 6.8 V8 Twin turbo 450bhp?
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: 506bhp and 985Nm expected. The Eco map is economy first: 500bhp and 979Nm. Both still sit above the standard 450bhp and 875Nm.
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 Bentley Arnage figures
Other petrol variants
All petrol Arnage variants · Arnage 1998-2009 overview · All Bentley figures