Opel Signum 3.0 V6 CDTi 184
ECU Remapping in Midwales
Opel Signum 3.0 V6 CDTi 184 in Midwales. Standard and remapped figures for this exact engine.

- Fully dyno tested remaps
- 30 day money back guarantee
- Lifetime software warranty
- UK-wide local network
Remap stats
Opel Signum 3.0 V6 CDTi 184: standard vs remapped
Diesel engine. Indicative stage 1 figures, fully dyno tested.
Power
+36 bhp · +20%- Standard184 bhp
- Remapped220 bhp
Torque
+75 Nm · +19%- Standard400 Nm
- Remapped475 Nm
Tuning figures are indicative estimates, not guaranteed results. Actual results depend on the condition of the vehicle.
Prices from £130
Fully dyno tested | 30 day money back guarantee | Lifetime software warranty
A stage 1 remap lifts the Opel Signum 3.0 V6 CDTi 184 from 184 bhp to 220 bhp, and from 400 Nm to 475 Nm of torque. That is 36 bhp (20%) more power and 75 Nm (19%) more torque from software alone, available in Midwales.
These are indicative figures for a diesel Opel Signum in good health. Your own results depend on the condition of the car.
Opel Signum 3.0 V6 CDTi 184 power and torque after remapping
- Fuel: Diesel
- Standard power: 184 bhp, remapped: 220 bhp (+36 bhp, +20%)
- Standard torque: 400 Nm, remapped: 475 Nm (+75 Nm, +19%)
- Service: stage 1 ECU remap, fully dyno tested
Diesel Opel Signum: what changes with a remap
Modern diesels are held back by conservative factory calibrations. A remap updates the fuel and boost maps stored in the ECU, which is why drivers notice stronger acceleration from low revs and less need to change down on hills or when loaded.
How the Opel Signum 3.0 V6 CDTi 184 compares
Among the 5 diesel Signum engines we have figures for, the 3.0 V6 CDTi 184 ranks 2nd for power gain, exactly the Signum diesel average.
Across our whole catalogue the average diesel remap adds 34 bhp and 73 Nm, so this engine's 36 bhp and 75 Nm sits at or above that benchmark.
Remapping your Opel Signum in Midwales
Remap Experts Midwales is part of the UK-wide Remap Experts network. We regularly work with drivers in Llanidloes, Welshpool, Newtown, Machynlleth and Llandrindod Wells and nearby areas of Wales.
All our remaps are fully dyno tested, backed by a 30 day money back guarantee and covered by a lifetime software warranty. Request a quote online or call 0800 779 7864.
If you are closer to Gwent, Cardiff and Chester, those neighbouring Remap Experts sites can help too.

Want these figures on your Opel Signum 3.0 V6 CDTi 184?
Tell us about your car and we will come back with a quote by SMS or phone.
Included
What we can do for your Opel Signum
Stage 1 ECU remap
Add power and torque and improve driveability. Software only, tailored to your engine.
ECU repair and testing
Is your engine control unit playing up? We can arrange testing and repair, and source replacement ECUs.
DPF and EGR fault repair
Persistent DPF or EGR errors diagnosed and resolved in accordance with all current road-legal standards.
Engine carbon cleaning
Fault finding and carbon cleaning for the inside of your engine, typically completed in a couple of hours.
From quote to remapped in four steps
No jargon and no pressure. Here is exactly what happens.
- 01
Find your vehicle
Choose your make, model and engine to see the standard and remapped power and torque for your car.
- 02
Request a quote
Send your details and we contact you by SMS or call back with a quote. No obligation.
- 03
Book with your local site
Your local Remap Experts site arranges the remap and answers any questions about your car.
- 04
Remapped and dyno tested
Your remap is fully dyno tested, with a 30 day money back guarantee and a lifetime software warranty.
Everything you need to know
Plain-English guides to how remapping works, what it does and what to check first.
- 6 min read
What is ECU remapping?
The engine control unit, what a remap changes, and who it suits.
Read guide - 5 min read
The benefits of ECU remapping
More torque, better driveability and the potential for better economy.
Read guide - 6 min read
How ECU remapping works, step by step
From reading the original software to the dyno test.
Read guide