Volvo Trucks FM12 2001> 12.1l EUR 3 D12C 340bhp remap figures
Stock, this 2001> Volvo Trucks FM12 diesel (12.1L) produces 340bhp and 1700Nm. Our expected figures for a Stage 1 remap are 405bhp and 1976Nm, an expected gain of up to 65bhp and 276Nm.
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 | 340 bhp | 405 bhp | +65 bhp |
| Torque | 1700 Nm | 1976 Nm | +276 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 340 bhp | 1700 Nm | |
| Stage 1Maximum software-only performance | 405 bhp | 1976 Nm | +65 bhp +276 Nm |
| Stage 1 EcoPerformance with economy in mind | 389 bhp | 1954 Nm | +49 bhp +254 Nm |
| Eco mapEconomy first | 384 bhp | 1940 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 FM12
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.
The ECU recorded for this variant is a Lucas B/C/D. 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 FM12 12.1l EUR 3 D12C 340bhp?
We expect 405bhp and 1976Nm against 340bhp and 1700Nm 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 FM12 12.1l EUR 3 D12C 340bhp?
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: 389bhp and 1954Nm expected. The Eco map is economy first: 384bhp and 1940Nm. Both still sit above the standard 340bhp and 1700Nm.
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 FM12 figures
Other diesel variants
- 12.1l EUR 4 D12D 340bhp 2007>
- 12.1l EUR 5 D12E 340bhp 2010>
- 12.1l EUR 3 D12C 380bhp 2001>
- 12.1l EUR 4 D12D 380bhp 2007>
- 12.1l EUR 5 D12E 380bhp 2010>
- 12.1l EUR 3 D12C 420bhp 2001>
- 12.1l EUR 4 D12D 420bhp 2007>
- 12.1l EUR 5 D12E 420bhp 2010>
- 12.1l EUR 3 D12C 460bhp 2001>
- 12.1l EUR 4 D12D 460bhp 2007>
All diesel FM12 variants · FM12 2001> overview · All Volvo Trucks figures