BMW M235i (F22/F23) N55 ECU Remap Software by Nforcd - Stage 1 400 bhp, Stage 2 420 bhp - Custom Dyno Tuning UK - Warwickshire

BMW M235i (F22/F23) N55 ECU Remap Software by Nforcd - Stage 1 400 bhp, Stage 2 420 bhp - Custom Dyno Tuning UK - Warwickshire

£550.00
£550.00
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Nforcd Remap Software for BMW M235i N55

Stage 1 up to 400 bhp. Stage 2 up to 420 bhp. The ultimate BMW M235i N55 ECU remap for real-world power, torque and drivability. If you are searching for BMW M235i remap, N55 remap, M235i tune, BMW N55 tuning, BMW M235i ECU tuning, Stage 1 M235i tune, Stage 2 M235i tune, dyno tuned M235i, Midlands tuning or Warwickshire remap, this is the calibration you want.

Why choose Nforcd for your BMW M235i N55 remap

We deliver a fully custom, dyno-developed ECU calibration for the BMW M235i N55 3.0 turbo that transforms response, mid-range torque and top-end power while keeping factory-level safety strategies intact. We work with one of Europe’s leading calibrators and build your map from the ground up for your car, your fuel and your goals.

  • Stage 1 M235i N55 remap up to 400 bhp with strong torque and smooth delivery
  • Stage 2 M235i N55 remap up to 420 bhp with sharper response and sustained power
  • Custom ECU tuning tailored on our hub dyno with before and after power runs
  • Noticeably improved throttle response, boost control and drivability
  • Data-logged optimisation of ignition, lambda, torque management and load targets
  • Safety first strategy maintained, with comprehensive health checks before tuning

What is included

  • Full custom calibration for BMW M235i N55 on our hub dyno with precise, repeatable results
  • Pre-tune health and baseline power assessment to confirm the car is performing as it should
  • Before and after dyno printouts so you can see the exact gains achieved
  • Customer options: cold start delete, adjustable burbles, GTS-style start up sound and more
  • ECU access via OBD where supported, or professional ECU bench unlock for newer locked units

Proven performance. Everyday reliability.

We have installed and used this M235i N55 remap extensively in-house, and our customers consistently praise the surge in usable torque, the clean power band and the OEM-like behaviour when cruising. It is a genuine performance upgrade for the BMW M235i that feels factory-refined yet significantly faster.

Perfect for searchers looking for

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Booking, fitting and location

We recommend professional installation and dyno calibration at Nforcd in Warwickshire for the best results. To book your BMW M235i N55 remap, request a fitting quote or arrange dyno time, email Sales@nforcd.com.

Please note that power figures are dependent on vehicle condition and setup. If you have questions about suitability for your car, get in touch and we will be happy to advise.