BHP+35 hp (19%)
Standard
184 hp
Tuned
219 hp
Torque+70 Nm (18%)
Standard
400 Nm
Tuned
470 Nm
Suitability
Good (6.5/10)Gains Profile
BalancedHeadroom
MediumOpel Signum 3.0 CDTi 184hp ECU Remapping
Considering an ECU remap for your Opel Signum 3.0 CDTi 184hp? A Stage 1 remap can take this 2003 - 2008 diesel engine from 184 BHP to 219 BHP and from 400 Nm to 470 Nm of torque (turbocharged). This engine scores 6.5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Opel Signum can achieve.
How this engine compares
- 5thof 8 Opel Signum engines by power gain
- 54%of the 9,842 engines we hold gain data for see a smaller power increase
- 55%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
The Opel Signum 3.0 CDTi 184hp is a 3.0L turbocharged diesel engine producing 184 BHP and 400 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 219 BHP and 470 Nm — a gain of around 35 BHP (19%) and 70 Nm (18%).
This engine has moderate 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 moderate, based on the percentage gain available from the factory output.
Considerations: High tuned torque: check transmission torque capacity and service history.. 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
!High tuned torque: check transmission torque capacity and service history.
!Older diesel: injector, turbo and intake condition can affect results; ensure maintenance is up to date.