BMW M140i Remap
The BMW M140i is a cult performance car with a deeply capable B58 straight-six under the bonnet - and it's one of the finest remapping platforms in the hot hatch segment. Stage 1 takes the M140i from 340bhp to well over 400bhp with no hardware changes, making it a genuinely supercar-baiting sleeper. AutoCleanse provides M140i remapping from our Totnes workshop for enthusiasts across Devon and the South West.
Performance Gains
BMW M140i Engine Options
3.0T B58 340 (F20)
Our Process
Professional ECU Tuning in Devon
Every remap we perform includes a full pre-tune diagnostic check to ensure your BMW is healthy before we start. We don't flash generic files - we use safe, proven calibrations tailored to your engine's specific hardware.
Mobile Remapping Available
We cover the entirety of Devon. We can remap your BMW M140i at your home, workplace, or driveway, providing the same high-quality service as you'd receive in our workshop.
FAQ
BMW M140i Remapping Questions
The B58 M140i typically reaches 400–410bhp and 580Nm at Stage 1 with no hardware changes. In an F20 1 Series body the performance is exceptional - 0–60 in the low 4s is achievable, putting it among the fastest hot hatches available.
The B58 engine has extraordinary Stage 2 potential. With an uprated intercooler, high-flow exhaust, and supporting modifications, 480–500bhp is achievable. However, Stage 1 at 400bhp is already remarkable and most M140i owners stop there.
The BMW B58 is one of the most respected performance engines in the tuning world. It has proven to be extremely reliable even at significantly elevated power levels when the remap is done correctly. We use maps from established tuners with a track record on B58s.
Yes - the ZF 8HP is extremely robust and handles Stage 1 power without issue. Many B58-powered cars run these gearboxes at much higher power levels without problem.
Yes - we remap M140is at our Totnes workshop and across Devon via mobile. Given the performance nature of the car, we recommend a workshop visit so we can carry out a thorough post-remap test drive on suitable roads.
Transform Your BMW Today.
Book your M140i in for a Stage 1 ECU remap. Choose between a workshop visit or a mobile appointment across Devon.
Safe, tested calibrations for long-term reliability