BMW M3 343 (E46)
ECU Remapping in Blackburn
BMW M3 343 (E46) in Blackburn. 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 M3 343 (E46): standard vs remapped
Petrol engine. Indicative stage 1 figures, fully dyno tested.
Power
+25 bhp · +7%- Standard343 bhp
- Remapped368 bhp
Torque
+45 Nm · +12%- Standard365 Nm
- Remapped410 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 BMW M3 343 (E46) from 343 bhp to 368 bhp, and from 365 Nm to 410 Nm of torque. That is 25 bhp (7%) more power and 45 Nm (12%) more torque from software alone, available in Blackburn.
These are indicative figures for a petrol BMW 3 Series in good health. Your own results depend on the condition of the car.
BMW M3 343 (E46) power and torque after remapping
- Fuel: Petrol
- Standard power: 343 bhp, remapped: 368 bhp (+25 bhp, +7%)
- Standard torque: 365 Nm, remapped: 410 Nm (+45 Nm, +12%)
- Service: stage 1 ECU remap, fully dyno tested
Petrol BMW 3 Series: what changes with a remap
With a petrol engine the remap works through the ECU's ignition, fuelling and turbo boost tables. Re-calibrating them within safe limits releases power that is already there, rather than adding anything to the engine.
How the BMW M3 343 (E46) compares
Among the 26 petrol 3 Series engines we have figures for, the M3 343 (E46) ranks 5th for power gain, 2 bhp above 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 25 bhp and 45 Nm sits below that benchmark.
BMW 3 Series engine tuning in Blackburn
Remap Experts Blackburn is part of the UK-wide Remap Experts network. We regularly work with drivers in Darwen, Preston, Manchester, Blackpool and Nelson and nearby areas of the North 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 Preston, Manchester and Lancaster, those neighbouring Remap Experts sites can help too.
Ready for ECU remapping on your BMW 3 Series in Blackburn?
Send your registration and we will confirm the exact remap, the price and the next available slot.
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