BHP+40 hp (27%)
Standard
150 hp
Tuned
190 hp
Torque+80 Nm (25%)
Standard
320 Nm
Tuned
400 Nm
Suitability
Good (7.5/10)Gains Profile
BalancedHeadroom
HighVauxhall Astra 1.9 CDTi 150hp ECU Remapping
Considering an ECU remap for your Vauxhall Astra 1.9 CDTi 150hp? A Stage 1 remap can take this (H) - 2004 - 2009 diesel engine from 150 BHP to 190 BHP and from 320 Nm to 400 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
- 4thof 42 Vauxhall Astra engines by power gain
- 63%of the 9,842 engines we hold gain data for see a smaller power increase
- 64%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 150hp is a 1.9L turbocharged diesel engine producing 150 BHP and 320 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 190 BHP and 400 Nm — a gain of around 40 BHP (27%) and 80 Nm (25%).
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: 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 - 2009 Engines
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