Volvo Trucks FM13 2005> 12.8l EUR 3 D13A 400bhp remap figures
The Volvo Trucks FM13 12.8l EUR 3 D13A 400bhp (2005>) is a diesel 12.8L model making 400bhp and 2000Nm as standard. After a Stage 1 ECU remap we expect 465bhp and 2276Nm - up to 65bhp and 276Nm 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 | 400 bhp | 465 bhp | +65 bhp |
| Torque | 2000 Nm | 2276 Nm | +276 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 400 bhp | 2000 Nm | |
| Stage 1Maximum software-only performance | 465 bhp | 2276 Nm | +65 bhp +276 Nm |
| Stage 1 EcoPerformance with economy in mind | 449 bhp | 2254 Nm | +49 bhp +254 Nm |
| Eco mapEconomy first | 444 bhp | 2240 Nm | +44 bhp +240 Nm |
Who is the Stage 1 map for?
- Drivers who want stronger pulling power for overtaking, hills and towing, with no parts to fit.
- Daily and motorway drivers who want the engine to feel less strained at cruising speed.
- Anyone who wants the biggest software-only change we list for this engine.
What this means for your FM13
On a diesel the biggest change is normally torque: the remap changes how much fuel and boost the ECU allows across the rev range, so pulling power arrives earlier and holds on longer.
This car is listed with a TRW EMS2 engine control unit. Older engine management is simpler to work with, but age matters: worn sensors, leaks and tired components can hold back what a remap delivers, which is why we run a diagnostic check first.
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 Volvo Trucks FM13 12.8l EUR 3 D13A 400bhp?
We expect 465bhp and 2276Nm against 400bhp and 2000Nm as standard: up to +65bhp and +276Nm. 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 Volvo Trucks FM13 12.8l EUR 3 D13A 400bhp?
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: 449bhp and 2254Nm expected. The Eco map is economy first: 444bhp and 2240Nm. Both still sit above the standard 400bhp and 2000Nm.
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 Volvo Trucks FM13 figures
Other diesel variants
- 12.8l EUR 4 D13B 400bhp 2007>
- 12.8l EUR 5 D13C 400bhp 2010>
- 12.8l EUR 5 D13C 380bhp 2010>
- 12.8l EUR 5 D13C 420bhp 2010>
- 12.8l EUR 3 D13A 360bhp 2005>
- 12.8l EUR 3 D13A 440bhp 2005>
- 12.8l EUR 4 D13B 360bhp 2007>
- 12.8l EUR 4 D13B 440bhp 2007>
- 12.8l EUR 5 D13C 440bhp 2010>
- 12.8l EUR 5 D13C 460bhp 2010>
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