Nforcd BMW 335i N55 ECU Remap Software | Custom Hub Dyno Tuned | Stage 1 400 bhp / Stage 2 420 bhp | UK

Nforcd BMW 335i N55 ECU Remap Software | Custom Hub Dyno Tuned | Stage 1 400 bhp / Stage 2 420 bhp | UK

£550.00
£550.00
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Nforcd Remap Software for BMW 335i N55 - Stage 1 400 bhp, Stage 2 420 bhp

Unlock the full potential of your BMW 335i N55 with Nforcd custom remap software. This is a true bespoke BMW 335i remap developed on our hub dyno in Warwickshire for safe, repeatable gains and exceptional drivability. Whether you choose Stage 1 400 bhp or Stage 2 420 bhp, our BMW ECU tuning delivers sharper throttle response, stronger mid-range torque and smooth, OEM-like refinement with serious performance.

Why choose Nforcd for your BMW 335i N55 remap

  • Custom calibration from the ground up - not a generic file. Every BMW 335i N55 tune is built for your car.
  • Hub dyno tested - precise before and after dyno results so you can see real gains.
  • Safety first - comprehensive health checks before tuning to ensure your vehicle is performing as it should.
  • Developed with leading European calibrators - premium BMW tuning expertise for power and reliability.
  • Road and dyno validated - seamless power delivery, stable boost control and factory-like manners when cruising.

Power gains

  • Stage 1: up to 400 bhp - perfect for a fast, reliable daily driver BMW 335i N55 remap.
  • Stage 2: up to 420 bhp - for customers with suitable supporting hardware and a focus on maximum performance.

Figures are indicative and will vary by vehicle condition, fuel quality and supporting hardware.

Included with Nforcd custom tuning

  • Full pre-tune inspection and baseline power assessment.
  • Bespoke map calibration on our hub dyno for your BMW 335i N55 engine.
  • Before and after dyno plots so you can verify gains.
  • Customer-selectable features:
    • Cold start delete option.
    • Adjustable burbles - higher or lower to suit your preference.
    • GTS-inspired startup roar.
  • ECU bench unlock service for newer ECUs that cannot be tuned via the OBD port.

What to expect

Stronger acceleration across the rev range, improved throttle response and a more engaging drive. The tune is designed to feel factory-smooth at light throttle with a serious step up in performance when you want it. We use this software on our own cars and feedback from Nforcd customers has been excellent for both Stage 1 and Stage 2 BMW 335i N55 remaps.

Process

  1. Initial vehicle health checks and baseline dyno run.
  2. Custom ECU calibration tailored to your BMW 335i N55.
  3. Validation on the hub dyno and road where appropriate.
  4. Final dyno printouts and handover.

Fitting, dyno and booking

Professional installation and dyno tuning is available at Nforcd in Warwickshire. To request a quote or book your BMW 335i N55 remap, please contact Sales@nforcd.com.

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