Iveco Stralis 2007> 10.3l S45 450bhp Stage 1 Eco remap figures
The Stage 1 Eco map for the Iveco Stralis 10.3l S45 450bhp (2007>): 499bhp and 2318Nm expected from a standard 450bhp and 2100Nm, up to +49bhp and +218Nm. It keeps most of the Stage 1 gain (Stage 1 is 515bhp and 2337Nm) 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 | 450 bhp | 499 bhp | +49 bhp |
| Torque | 2100 Nm | 2318 Nm | +218 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 450 bhp | 2100 Nm | |
| Stage 1Maximum software-only performance | 515 bhp | 2337 Nm | +65 bhp +237 Nm |
| Stage 1 EcoPerformance with economy in mind | 499 bhp | 2318 Nm | +49 bhp +218 Nm |
| Eco mapEconomy first | 494 bhp | 2306 Nm | +44 bhp +206 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 Iveco Stralis is expected to give 515bhp and 2337Nm (+65bhp, +237Nm). The Stage 1 Eco keeps about 75% of that power gain and 92% of the torque gain, so you get 499bhp and 2318Nm: 16bhp less and 19Nm 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 450bhp and 2100Nm.
What this means for your Stralis
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 Bosch EDC7U31 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 Iveco Stralis 10.3l S45 450bhp?
We expect 499bhp and 2318Nm against 450bhp and 2100Nm as standard: up to +49bhp and +218Nm. 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 515bhp and 2337Nm. Stage 1 Eco gives 16bhp less and 19Nm 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 (499bhp and 2318Nm) and still care about running costs. Choose the Eco map (494bhp and 2306Nm) 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 Iveco Stralis figures
Other diesel variants
- 10.3l S42 420bhp 2007>
- 12.9l S48 480bhp 2001-2007
- 10.3l S40 400bhp 2001-2007
- 12.9l S50 500bhp 2007>
- 7.8l S36 360bhp 2007>
- 12.9l S54 540bhp 2001-2007
- 7.8l S35 350bhp 2001-2007
- 12.9l S56 560bhp 2007>
- 7.8l S33 330bhp 2007>
- 7.8l S31 310bhp 2007>
All diesel Stralis variants ยท Stralis 2001> overview ยท All Iveco figures
