Volvo Trucks FH12 2007> 12.1l EUR 4 D12D 420bhp remap figures
Thinking of remapping a Volvo Trucks FH12 12.1l EUR 4 D12D 420bhp? The standard car makes 420bhp and 2000Nm; with a Stage 1 remap from our Leicester workshop we expect around 485bhp and 2276Nm, 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 | 420 bhp | 485 bhp | +65 bhp |
| Torque | 2000 Nm | 2276 Nm | +276 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 420 bhp | 2000 Nm | |
| Stage 1Maximum software-only performance | 485 bhp | 2276 Nm | +65 bhp +276 Nm |
| Stage 1 EcoPerformance with economy in mind | 469 bhp | 2254 Nm | +49 bhp +254 Nm |
| Eco mapEconomy first | 464 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 FH12
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.
Engine management is by a Motorola EMS S6 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 Volvo Trucks FH12 12.1l EUR 4 D12D 420bhp?
We expect 485bhp and 2276Nm against 420bhp 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 FH12 12.1l EUR 4 D12D 420bhp?
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: 469bhp and 2254Nm expected. The Eco map is economy first: 464bhp and 2240Nm. Both still sit above the standard 420bhp 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 FH12 figures
Other diesel variants
- 12.1l EUR 3 D12C 420bhp 2001-2005
- 12.1l EUR 5 D12E 420bhp 2010>
- 12.1l EUR 3 D12C 380bhp 2001-2005
- 12.1l EUR 4 D12D 380bhp 2007>
- 12.1l EUR 4 D12D 460bhp 2007>
- 12.1l EUR 5 D12E 380bhp 2010>
- 12.1l EUR 5 D12E 460bhp 2010>
- 12.1l EUR 3 D12C 460bhp 2001-2005
All diesel FH12 variants · FH12 2001> overview · All Volvo Trucks figures