Alfa Romeo 156 JTD 2.4 Multijet (JTDm) 175
Engine Remapping in Bath
Alfa Romeo 156 JTD 2.4 Multijet (JTDm) 175 in Bath. 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
Alfa Romeo 156 JTD 2.4 Multijet (JTDm) 175: standard vs remapped
Diesel engine. Indicative stage 1 figures, fully dyno tested.
Power
+35 bhp · +20%- Standard175 bhp
- Remapped210 bhp
Torque
+80 Nm · +21%- Standard385 Nm
- Remapped465 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
Out of the box the Alfa Romeo 156 JTD 2.4 Multijet (JTDm) 175 gives 175 bhp and 385 Nm. Remapped in Bath, we record 210 bhp and 465 Nm, so 35 bhp and 80 Nm more, or 20% and 21% respectively.
These are indicative figures for a diesel Alfa Romeo 156 in good health. Your own results depend on the condition of the car.
Alfa Romeo 156 JTD 2.4 Multijet (JTDm) 175 remap figures
- Fuel: Diesel
- Standard power: 175 bhp, remapped: 210 bhp (+35 bhp, +20%)
- Standard torque: 385 Nm, remapped: 465 Nm (+80 Nm, +21%)
- Service: stage 1 ECU remap, fully dyno tested
What a remap does for a diesel Alfa Romeo 156
On a diesel the ECU decides how much fuel is injected and how hard the turbo works. A remap adjusts those calibrations within safe limits, so the gains show up mainly as extra torque low in the rev range and smoother, more responsive pull.
For reference, JTD and Multijet are the Fiat Group names for its common-rail diesel engines.
How the Alfa Romeo 156 JTD 2.4 Multijet (JTDm) 175 compares
Of the 9 diesel 156 engines in our data, this one comes 9th for power gain, which is 1 bhp below the 156 diesel average of 36 bhp.
Across our whole catalogue the average diesel remap adds 34 bhp and 73 Nm, so this engine's 35 bhp and 80 Nm sits at or above that benchmark.
Book vehicle tuning for your Alfa Romeo 156 in Bath
Based around Bath, our team serves local drivers as part of the nationwide Remap Experts network. We regularly work with drivers in Midsomer Norton, Westbury, Swindon, Radstock and Melksham and nearby areas of the South West.
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 Bristol, Somerset and Southampton, those neighbouring Remap Experts sites can help too.

Ready for engine remapping on your Alfa Romeo 156 in Bath?
Send your details and a specialist will confirm what is possible for your engine.
Included
What we can do for your Alfa Romeo 156
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.
Same model
Other 156 engines
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