BMW 320d 163 (E46)
Chip Tuning Cardiff
BMW 320d 163 (E46) in Cardiff. 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
BMW 320d 163 (E46): standard vs remapped
Diesel engine. Indicative stage 1 figures, fully dyno tested.
Power
+45 bhp · +27%- Standard164 bhp
- Remapped209 bhp
Torque
+83 Nm · +30%- Standard280 Nm
- Remapped363 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
Standard, the BMW 320d 163 (E46) makes 164 bhp and 280 Nm. With Remap Experts in Cardiff it moves to 209 bhp and 363 Nm, which adds 45 bhp (27%) and 83 Nm (30%).
Figures are indicative stage 1 estimates for a healthy diesel BMW 3 Series; results vary with the condition of the vehicle.
BMW 320d 163 (E46) power and torque after remapping
- Fuel: Diesel
- Standard power: 164 bhp, remapped: 209 bhp (+45 bhp, +27%)
- Standard torque: 280 Nm, remapped: 363 Nm (+83 Nm, +30%)
- Service: stage 1 ECU remap, fully dyno tested
Diesel BMW 3 Series: what changes with a remap
Nothing is bolted on in a diesel remap. The ECU's stored maps for injection quantity, rail pressure and turbo boost are rewritten within safe limits, and because diesels make power through torque, that is where the improvement is most obvious.
BMW 320d 163 (E46) against other 3 Series engines
Of the 13 diesel 3 Series engines in our data, this one comes 1st for power gain, which is 8 bhp above the 3 Series diesel average of 37 bhp.
Across our whole catalogue the average diesel remap adds 34 bhp and 73 Nm, so this engine's 45 bhp and 83 Nm sits at or above that benchmark.
BMW 3 Series ECU tuning in Cardiff
This is the Cardiff site of the Remap Experts network, serving local drivers. We regularly work with drivers in Pentyrch, Rumney, Riverside, Rhiwbina and Llandaff and nearby areas of Wales.
You get a fully dyno tested remap, a 30 day money back guarantee and a lifetime software warranty with every job. Get your quote today on 0800 779 7864.
If you are closer to Gwent, Bristol and Midwales, those neighbouring Remap Experts sites can help too.

Ready for chip tuning on your BMW 3 Series in Cardiff?
Send your details and a specialist will confirm what is possible for your engine.
Included
What we can do for your BMW 3 Series
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 3 Series 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