BHP+25 hp (25%)
Standard
100 hp
Tuned
125 hp
Torque+50 Nm (22%)
Standard
230 Nm
Tuned
280 Nm
Suitability
Good (7.5/10)Gains Profile
BalancedHeadroom
HighVauxhall Astra 2.0 DTI 100hp ECU Remapping
Considering an ECU remap for your Vauxhall Astra 2.0 DTI 100hp? A Stage 1 remap can take this (G) - 1998 - 2004 diesel engine from 100 BHP to 125 BHP and from 230 Nm to 280 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
- 20thof 42 Vauxhall Astra engines by power gain
- 28%of the 9,842 engines we hold gain data for see a smaller power increase
- 27%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
The Vauxhall Astra 2.0 DTI 100hp is a 2.0L turbocharged diesel engine producing 100 BHP and 230 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 125 BHP and 280 Nm — a gain of around 25 BHP (25%) and 50 Nm (22%).
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 (G) - 1998 - 2004 Engines
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