BMW 318ci 143 (E46)
Remapping Bath
BMW 318ci 143 (E46) 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
BMW 318ci 143 (E46): standard vs remapped
Petrol engine. Indicative stage 1 figures, fully dyno tested.
Power
+20 bhp · +14%- Standard143 bhp
- Remapped163 bhp
Torque
+35 Nm · +18%- Standard200 Nm
- Remapped235 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 318ci 143 (E46) makes 143 bhp and 200 Nm. With Remap Experts in Bath it moves to 163 bhp and 235 Nm, which adds 20 bhp (14%) and 35 Nm (18%).
Figures are indicative stage 1 estimates for a healthy petrol BMW 3 Series; results vary with the condition of the vehicle.
BMW 318ci 143 (E46) remap figures
- Fuel: Petrol
- Standard power: 143 bhp, remapped: 163 bhp (+20 bhp, +14%)
- Standard torque: 200 Nm, remapped: 235 Nm (+35 Nm, +18%)
- Service: stage 1 ECU remap, fully dyno tested
Petrol BMW 3 Series: what changes with a remap
Factory petrol calibrations leave margin for poor fuel and hot climates. A remap tunes the ignition, fuelling and boost maps to make better use of that margin, which shows up as livelier throttle response and stronger acceleration.
BMW 318ci 143 (E46) against other 3 Series engines
Ranked by power gain against the other petrol 3 Series engines (26 in total), the 318ci 143 (E46) is 14th, 3 bhp below the 3 Series petrol average of 23 bhp.
Across our whole catalogue the average petrol remap adds 27 bhp and 51 Nm, so this engine's 20 bhp and 35 Nm sits below that benchmark.
BMW 3 Series ECU tuning in Bath
This is the Bath site of the Remap Experts network, serving local drivers. We regularly work with drivers in Midsomer Norton, Westbury, Swindon, Radstock and Melksham and nearby areas of the South West.
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 Bristol, Somerset and Southampton, those neighbouring Remap Experts sites can help too.

Ready for remapping on your BMW 3 Series in Bath?
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