BHP+25 hp (31%)
Standard
80 hp
Tuned
105 hp
Torque+60 Nm (35%)
Standard
170 Nm
Tuned
230 Nm
Suitability
Excellent (8/10)Gains Profile
BalancedHeadroom
HighVauxhall Astra 1.7 CDTi 80hp ECU Remapping
Considering an ECU remap for your Vauxhall Astra 1.7 CDTi 80hp? A Stage 1 remap can take this (H) - 2004 - 2011 diesel engine from 80 BHP to 105 BHP and from 170 Nm to 230 Nm of torque (turbocharged). This engine scores 8/10 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
- 20thof 42 Vauxhall Astra engines by power gain
- 28%of the 9,842 engines we hold gain data for see a smaller power increase
- 41%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 80hp is a 1.7L turbocharged diesel engine producing 80 BHP and 170 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 105 BHP and 230 Nm — a gain of around 25 BHP (31%) and 60 Nm (35%).
This engine scores highly for remap suitability, with a balanced spread of gains across both power and torque — providing a noticeable improvement across the rev range. The tuning headroom is classified as high, based on the percentage gain available from the factory output.
Considerations: Large torque increase: drivetrain condition (clutch/gearbox) becomes more important at this level.. Older diesel: injector, turbo and intake condition can affect results; ensure maintenance is up to date.
Fuel economy note: economy gains unlikely at full power; depends on driving style.
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
!Large torque increase: drivetrain condition (clutch/gearbox) becomes more important at this level.
!Older diesel: injector, turbo and intake condition can affect results; ensure maintenance is up to date.