BHP+30 hp (30%)
Standard
100 hp
Tuned
130 hp
Torque+55 Nm (23%)
Standard
240 Nm
Tuned
295 Nm
Suitability
Good (7.5/10)Gains Profile
Power-focusedHeadroom
HighVauxhall Astra 1.7 CDTi 100hp ECU Remapping
Considering an ECU remap for your Vauxhall Astra 1.7 CDTi 100hp? A Stage 1 remap can take this (H) - 2004 - 2011 diesel engine from 100 BHP to 130 BHP and from 240 Nm to 295 Nm of torque (turbocharged). This engine scores 7.5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Vauxhall Astra can achieve.
How this engine compares
- 12thof 42 Vauxhall Astra engines by power gain
- 39%of the 9,842 engines we hold gain data for see a smaller power increase
- 38%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
The Vauxhall Astra 1.7 CDTi 100hp is a 1.7L turbocharged diesel engine producing 100 BHP and 240 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 130 BHP and 295 Nm — a gain of around 30 BHP (30%) and 55 Nm (23%).
This engine scores highly for remap suitability, with gains weighted towards peak power — the improvement is most noticeable at higher RPM. The tuning headroom is classified as high, based on the percentage gain available from the factory output.
Considerations: Older diesel: injector, turbo and intake condition can affect results; ensure maintenance is up to date.
Fuel economy note: possible improvement with conservative driving.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method. We recommend discussing your specific vehicle with a qualified remap professional.
Considerations
!Older diesel: injector, turbo and intake condition can affect results; ensure maintenance is up to date.
Other Astra (H) - 2004 - 2011 Engines
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