Vauxhall Astra Van (H) 2010> 1.7 CDTi 123bhp Stage 1 Eco remap figures
The Stage 1 Eco map for the Vauxhall Astra Van 1.7 CDTi 123bhp (2010>): 155bhp and 363Nm expected from a standard 123bhp and 279Nm, up to +32bhp and +84Nm. It keeps most of the Stage 1 gain (Stage 1 is 166bhp and 370Nm) 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 | 123 bhp | 155 bhp | +32 bhp |
| Torque | 279 Nm | 363 Nm | +84 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 123 bhp | 279 Nm | |
| Stage 1Maximum software-only performance | 166 bhp | 370 Nm | +43 bhp +91 Nm |
| Stage 1 EcoPerformance with economy in mind | 155 bhp | 363 Nm | +32 bhp +84 Nm |
| Eco mapEconomy first | 152 bhp | 358 Nm | +29 bhp +79 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 Vauxhall Astra Van is expected to give 166bhp and 370Nm (+43bhp, +91Nm). The Stage 1 Eco keeps about 74% of that power gain and 92% of the torque gain, so you get 155bhp and 363Nm: 11bhp less and 7Nm 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 123bhp and 279Nm.
What this means for your Astra Van
Diesel remaps work mainly on boost pressure, fuel delivery and torque limiters, which is why the Nm gain is usually the figure you feel in everyday driving, particularly when overtaking or towing.
This car is listed with a Denso engine control 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 Vauxhall Astra Van 1.7 CDTi 123bhp?
We expect 155bhp and 363Nm against 123bhp and 279Nm as standard: up to +32bhp and +84Nm. 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 166bhp and 370Nm. Stage 1 Eco gives 11bhp less and 7Nm 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 (155bhp and 363Nm) and still care about running costs. Choose the Eco map (152bhp and 358Nm) 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 Vauxhall Astra Van figures
Other diesel variants
- 1.9 CDTi 120bhp 2004-2006
- 1.9 CDTi 120bhp 2007-2011
- 1.7 CDTi 108bhp 2010>
- 1.7 CDTi 98bhp 2004-2010
- 1.9 CDTi 150bhp 2004-2006
- 1.9 CDTi 150bhp 2007-2011
- 1.7 CDTi 79bhp 2004-2010
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