BMW M3 E90 420
Engine Tuning Merseyside
BMW M3 E90 420 in Merseyside. 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 E90 420: standard vs remapped
Petrol engine. Indicative stage 1 figures, fully dyno tested.
Power
+30 bhp · +7%- Standard420 bhp
- Remapped450 bhp
Torque
+43 Nm · +11%- Standard400 Nm
- Remapped443 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
What does a remap do for the BMW M3 E90 420? Our figures show power up from 420 to 450 bhp (+7%) and torque up from 400 to 443 Nm (+11%), a stage 1 result you can book in Merseyside.
Treat the numbers as a guide: they are stage 1 estimates for a petrol BMW 3 Series in sound condition, and individual cars differ.
BMW M3 E90 420 power and torque after remapping
- Fuel: Petrol
- Standard power: 420 bhp, remapped: 450 bhp (+30 bhp, +7%)
- Standard torque: 400 Nm, remapped: 443 Nm (+43 Nm, +11%)
- Service: stage 1 ECU remap, fully dyno tested
How engine tuning works on a petrol BMW 3 Series
On a petrol car the ECU controls fuelling, spark timing and any turbo boost. A remap re-calibrates those maps within safe limits, so the car responds more eagerly and pulls harder through the rev range.
BMW M3 E90 420 against other 3 Series engines
Among the 26 petrol 3 Series engines we have figures for, the M3 E90 420 ranks 4th for power gain, 7 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 30 bhp and 43 Nm sits at or above that benchmark.
Book vehicle tuning for your BMW 3 Series in Merseyside
Drivers in Merseyside book through the Merseyside Remap Experts site, one of our local sites across the UK. We regularly work with drivers in Kirkby, Southport, Skelsmersdale, Knowsley and Halsall and nearby areas of the North West.
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 Liverpool, Warrington and Cheshire, those neighbouring Remap Experts sites can help too.
Get a quote for your BMW M3 E90 420
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