Alfa Romeo 159 JTD 1.9 Multijet (JTDm) 120
Chip Tuning West Midlands
Alfa Romeo 159 JTD 1.9 Multijet (JTDm) 120 in West Midlands. 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 159 JTD 1.9 Multijet (JTDm) 120: standard vs remapped
Diesel engine. Indicative stage 1 figures, fully dyno tested.
Power
+37 bhp · +31%- Standard120 bhp
- Remapped157 bhp
Torque
+75 Nm · +27%- Standard280 Nm
- Remapped355 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
The Alfa Romeo 159 JTD 1.9 Multijet (JTDm) 120 produces 120 bhp and 280 Nm of torque as standard. After a stage 1 ECU remap in West Midlands, our figures show 157 bhp and 355 Nm: a gain of 37 bhp (31%) and 75 Nm (27%).
Treat the numbers as a guide: they are stage 1 estimates for a diesel Alfa Romeo 159 in sound condition, and individual cars differ.
Alfa Romeo 159 JTD 1.9 Multijet (JTDm) 120 power and torque after remapping
- Fuel: Diesel
- Standard power: 120 bhp, remapped: 157 bhp (+37 bhp, +31%)
- Standard torque: 280 Nm, remapped: 355 Nm (+75 Nm, +27%)
- Service: stage 1 ECU remap, fully dyno tested
How chip tuning works on a diesel Alfa Romeo 159
The gains from remapping a diesel come from the engine management software rather than new parts: injection, boost and torque limits are re-mapped, which is why torque improves most and why the car often feels easier to drive at lower revs.
For reference, JTD and Multijet are the Fiat Group names for its common-rail diesel engines.
Alfa Romeo 159 JTD 1.9 Multijet (JTDm) 120 against other 159 engines
Among the 4 diesel 159 engines we have figures for, the JTD 1.9 Multijet (JTDm) 120 ranks 1st for power gain, 1 bhp above the 159 diesel average of 36 bhp.
Across our whole catalogue the average diesel remap adds 34 bhp and 73 Nm, so this engine's 37 bhp and 75 Nm sits at or above that benchmark.
Book ECU tuning for your Alfa Romeo 159 in West Midlands
Whether you live in West Midlands or nearby, the West Midlands Remap Experts site is your local route to a quote. We regularly work with drivers in Tipton, Willenhall, Wednesfield, Walsall and Stourbridge and nearby areas of the West Midlands.
Every remap is fully dyno tested and comes with a 30 day money back guarantee and a lifetime software warranty. Call 0800 779 7864 for a quote.
If you are closer to Birmingham, Coventry and Worcester, those neighbouring Remap Experts sites can help too.

Get a quote for your Alfa Romeo 159 JTD 1.9 Multijet (JTDm) 120
Tell us about your car and we will come back with a quote by SMS or phone.
Included
What we can do for your Alfa Romeo 159
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 159 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