Isuzu Trooper 1998-2003 3.0 TD 157bhp Stage 1 Eco remap figures
The Stage 1 Eco map for the Isuzu Trooper 3.0 TD 157bhp (1998-2003): 182bhp and 393Nm expected from a standard 157bhp and 334Nm, up to +25bhp and +59Nm. It keeps most of the Stage 1 gain (Stage 1 is 190bhp and 398Nm) 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 | 157 bhp | 182 bhp | +25 bhp |
| Torque | 334 Nm | 393 Nm | +59 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 157 bhp | 334 Nm | |
| Stage 1Maximum software-only performance | 190 bhp | 398 Nm | +33 bhp +64 Nm |
| Stage 1 EcoPerformance with economy in mind | 182 bhp | 393 Nm | +25 bhp +59 Nm |
| Eco mapEconomy first | 179 bhp | 390 Nm | +22 bhp +56 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 Isuzu Trooper is expected to give 190bhp and 398Nm (+33bhp, +64Nm). The Stage 1 Eco keeps about 76% of that power gain and 92% of the torque gain, so you get 182bhp and 393Nm: 8bhp less and 5Nm 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 157bhp and 334Nm.
What this means for your Trooper
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 Bosch EDC15M 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 Eco questions
How much power does the Stage 1 Eco map give the Isuzu Trooper 3.0 TD 157bhp?
We expect 182bhp and 393Nm against 157bhp and 334Nm as standard: up to +25bhp and +59Nm. 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 190bhp and 398Nm. Stage 1 Eco gives 8bhp less and 5Nm 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 (182bhp and 393Nm) and still care about running costs. Choose the Eco map (179bhp and 390Nm) 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 Isuzu Trooper figures
Other diesel variants
All diesel Trooper variants · Trooper 1998-2003 overview · All Isuzu figures