Volvo Trucks FM9 2010> 9.4l EUR 5 D9B 300bhp Stage 1 Eco remap figures
The Stage 1 Eco map for the Volvo Trucks FM9 9.4l EUR 5 D9B 300bhp (2010>): 341bhp and 1579Nm expected from a standard 300bhp and 1401Nm, up to +41bhp and +178Nm. It keeps most of the Stage 1 gain (Stage 1 is 355bhp and 1595Nm) and is tuned with economy in mind: the choice if you want the performance and care what each tank costs.
Choose your map
Stage 1 Eco remap figures
Stage 1 Eco is performance with economy in mind. It keeps most of the Stage 1 gain, so the car still pulls well, but the map is shaped for efficient, relaxed driving rather than flat-out output. It is above the standard figures. We don't quote mpg, because economy depends on the car and how it is driven.
| Stock | Vanguard expected | Expected gain, up to | |
|---|---|---|---|
| Power | 300 bhp | 341 bhp | +41 bhp |
| Torque | 1401 Nm | 1579 Nm | +178 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 300 bhp | 1401 Nm | |
| Stage 1Maximum software-only performance | 355 bhp | 1595 Nm | +55 bhp +194 Nm |
| Stage 1 EcoPerformance with economy in mind | 341 bhp | 1579 Nm | +41 bhp +178 Nm |
| Eco mapEconomy first | 337 bhp | 1570 Nm | +37 bhp +169 Nm |
Who is the Stage 1 Eco map for?
- Drivers who want the pull of a remap for overtaking, motorways and towing, with the engine tuned with economy in mind.
- High-mileage drivers who want better performance and a more efficient everyday car in one map.
- Anyone who would otherwise take full Stage 1 but cares what each tank costs.
How Stage 1 Eco compares with Stage 1
Full Stage 1 on this Volvo Trucks FM9 is expected to give 355bhp and 1595Nm (+55bhp, +194Nm). The Stage 1 Eco keeps about 75% of that power gain and 92% of the torque gain, so you get 341bhp and 1579Nm: 14bhp less and 16Nm less than Stage 1, with the map shaped for efficient, relaxed driving, so it suits you if you want the pull and care about running costs. Both sit above the standard 300bhp and 1401Nm.
What this means for your FM9
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 Lucas B/C/D 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 Eco questions
How much power does the Stage 1 Eco map give the Volvo Trucks FM9 9.4l EUR 5 D9B 300bhp?
We expect 341bhp and 1579Nm against 300bhp and 1401Nm as standard: up to +41bhp and +178Nm. These are expected figures, and we confirm what is achievable on your own car after a diagnostic check.
How does Stage 1 Eco differ from Stage 1 on this engine?
Full Stage 1 is expected to give 355bhp and 1595Nm. Stage 1 Eco gives 14bhp less and 16Nm less, in exchange for a map shaped with economy in mind. It still sits above the standard figures.
Is Stage 1 Eco or the Eco map better for me?
Choose Stage 1 Eco if you want the performance (341bhp and 1579Nm) and still care about running costs. Choose the Eco map (337bhp and 1570Nm) if economy matters more than pace.
Will the Stage 1 Eco map save fuel?
It is tuned with economy in mind while keeping most of the Stage 1 performance. We do not quote mpg figures, because economy depends on the car, its condition and how it is driven.
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 FM9 figures
Other diesel variants
- 9.4l EUR 3 D9A 300bhp 2001>
- 9.4l EUR 4 D9B 300bhp 2007>
- 9.4l EUR 3 D9A 260bhp 2001>
- 9.4l EUR 3 D9A 340bhp 2001>
- 9.4l EUR 4 D9B 260bhp 2007>
- 9.4l EUR 4 D9B 340bhp 2007>
- 9.4l EUR 5 D9B 340bhp 2010>
- 9.4l EUR 3 D9A 360bhp 2001>
- 9.4l EUR 4 D9B 360bhp 2007>
- 9.4l EUR 5 D9B 360bhp 2010>
All diesel FM9 variants · FM9 2001> overview · All Volvo Trucks figures