Vauxhall Astra 1.9 CDTi 100hp Remap
Expected gains of +50 BHP and +100 Nm torque
Get Your Free Quote ↓BHP+50 hp (50%)
Standard
100 hp
Tuned
150 hp
Torque+100 Nm (38%)
Standard
260 Nm
Tuned
360 Nm
Suitability
Excellent (8/10)Gains Profile
BalancedHeadroom
HighVauxhall Astra 1.9 CDTi 100hp ECU Remapping
Considering an ECU remap for your Vauxhall Astra 1.9 CDTi 100hp? A Stage 1 remap can take this (H) - 2004 - 2009 diesel engine from 100 BHP to 150 BHP and from 260 Nm to 360 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
- 2ndof 42 Vauxhall Astra engines by power gain
- 76%of the 9,842 engines we hold gain data for see a smaller power increase
- 79%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
The Vauxhall Astra 1.9 CDTi 100hp is a 1.9L turbocharged diesel engine producing 100 BHP and 260 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 150 BHP and 360 Nm — a gain of around 50 BHP (50%) and 100 Nm (38%).
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.