BMW 135i 306
ECU Remapping
BMW 135i 306. 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 135i 306: standard vs remapped
Petrol engine. Indicative stage 1 figures, fully dyno tested.
Power
+50 bhp · +16%- Standard306 bhp
- Remapped356 bhp
Torque
+80 Nm · +20%- Standard400 Nm
- Remapped480 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 135i 306? Our figures show power up from 306 to 356 bhp (+16%) and torque up from 400 to 480 Nm (+20%), a stage 1 result you can book across the UK.
Treat the numbers as a guide: they are stage 1 estimates for a petrol BMW 1 Series in sound condition, and individual cars differ.
BMW 135i 306 power and torque after remapping
- Fuel: Petrol
- Standard power: 306 bhp, remapped: 356 bhp (+50 bhp, +16%)
- Standard torque: 400 Nm, remapped: 480 Nm (+80 Nm, +20%)
- Service: stage 1 ECU remap, fully dyno tested
How ECU remapping works on a petrol BMW 1 Series
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 135i 306 against other 1 Series engines
Among the 9 petrol 1 Series engines we have figures for, the 135i 306 ranks 1st for power gain, 25 bhp above the 1 Series petrol average of 25 bhp.
Across our whole catalogue the average petrol remap adds 27 bhp and 51 Nm, so this engine's 50 bhp and 80 Nm sits at or above that benchmark.
BMW 1 Series chip tuning
Our network covers the whole of the UK through local Remap Experts sites. Find your area to get a quote from a specialist near you.
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.
Get a quote for your BMW 135i 306
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 1 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.
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