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Bootmod3

bootmod3 BM3 BMW N55 F-Series/F-Chassis ECU Tune Remap Licence | OBD DME Flash Software + FREE ENET Cable | Stage 1/2 OTS Maps | M2 M135i M235i 335i 435i 535i 640i

bootmod3 BM3 BMW N55 F-Series/F-Chassis ECU Tune Remap Licence | OBD DME Flash Software + FREE ENET Cable | Stage 1/2 OTS Maps | M2 M135i M235i 335i 435i 535i 640i

£518.00
£518.00 £518.00
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Heads-up on cancellations & returns: if you cancel an order or return an item, you won't get back 100% of what you paid. We apply a 10% restocking fee, the outbound shipping is non-refundable, and we have to pass on Shopify / PayPal payment processing fees; these aren't returned to us when we refund you. International orders also lose on exchange-rate spread in both directions. If the original packaging is damaged or missing, a reboxing charge applies. For international orders specifically, if you refuse to pay our shipping invoice or supply a prepaid label after placing the order, the same deductions apply. We're upfront about this — please be sure of your purchase before ordering.

BM3 N55 Software Licence with FREE ENET Lead for F-Series BMW

Turn your turbocharged 3.0 straight-six into a genuine powerhouse with the official BM3 calibration for the N55 engine. This VIN-locked software key activates cloud-based engine management tuning and OBD Ethernet flashing, letting you update the DME at home in minutes using a laptop or the bootmod3 app. We run this setup on our own cars and customer builds and the feedback is consistently superb for both performance and drivability.

Included in this listing: one N55 BM3 software licence plus a free high quality ENET Ethernet cable for simple OBD flashing. Buy today for instant access to proven power on popular F-series platforms including M2, M135i, M235i, 335i, 435i, 535i, 640i, 740i, X3 35i, X4 M40i, X5 40i and X6 40i in both PWG and EWG variants.

Why this N55 engine software is a game changer

  • Fast OBD flash via ENET - tune anywhere with internet access
  • One off the shelf map included - choose Stage 1 or Stage 2 for your hardware
  • Mobile apps for iOS and Android plus full-featured web interface
  • Live dashboard and advanced datalogging - 200 plus channels, up to 40 simultaneously
  • Cloud map storage, easy map switching, restore factory calibration any time and re-lock the DME
  • Built-in diagnostics - read and clear fault codes across vehicle modules, reset adaptations and perform ECU power reset

Real-world gains on the N55 turbo six

Pneumatic wastegate - PWG
Stage 1 91: 19 percent HP / 28 percent TQ
Stage 1 93: 21 percent HP / 30 percent TQ
Stage 2 91: 25 percent HP / 34 percent TQ
Stage 2 93: 27 percent HP / 36 percent TQ

Electronic wastegate - EWG
Stage 1 91: 25 percent HP / 28 percent TQ
Stage 1 93: 27 percent HP / 30 percent TQ
Stage 2 91: 31 percent HP / 34 percent TQ
Stage 2 93: 33 percent HP / 36 percent TQ

BMW M2 N55
Stage 1 91: 22 percent HP / 25 percent TQ
Stage 1 93: 25 percent HP / 27 percent TQ
Stage 2 91: 27 percent HP / 30 percent TQ
Stage 2 93: 30 percent HP / 33 percent TQ

Figures vary with fuel quality, supporting hardware and vehicle condition. Expect strong midrange torque, sharper throttle response and smooth, factory-like manners in daily use.

Map features and options

  • Top speed limiter removal
  • Raised rev limiter where supported
  • Exhaust burble control
  • Cold start cat heat cycle and cat efficiency check removal for off road use
  • Support for upgraded turbochargers
  • E85 blends, race fuel and methanol injection strategies
  • Custom throttle mapping
  • Backend flash support for piggybacks such as JB4

Compatibility - N55 F-Series petrol models

  • M135i 2012 - 2016
  • M235i 2013 - 2016
  • M2 2016 - 2018
  • 335i 2011 - 2015 including ActiveHybrid 3
  • 435i 2013 - 2016
  • 535i 2011 - 2017 including ActiveHybrid 5
  • 640i 2012 - 2017
  • 740i 2011 - 2016
  • X3 35i 2010 - 2017
  • X4 M40i 2015 - 2017
  • X5 40i 2013 - 2017
  • X6 40i 2014 - 2017

If your vehicle is not listed, please contact us for guidance.

PWG or EWG - how to tell

Identify your wastegate type to choose the correct calibration:

BMW N55 pneumatic vs electronic wastegate identification

What you need to flash

  • ENET OBD cable for Ethernet flashing - included free
  • Laptop with internet or the BM3 OBD WiFi Agent device plus mobile app
  • Some cars updated with 2019 plus BMW software may require a bench unlock before OBD flashing

DME removal is generally not required. For bench unlocks, message us and we will point you to a trusted partner.

Professional installation and support

Want us to handle setup and flashing. MJ Modifications offers installation and support in Warwickshire. Request a quote at info@mjmodifications.co.uk and our team will configure your tune, datalog the car and optimise your setup.

Recommended add-ons

  • BM3 N55 F-Series OTS Maps Bundle for additional calibrations
  • BM3 OBD WiFi Agent device for wireless flashing and live monitoring
  • Spare high quality ENET Ethernet cable

What you receive

  • Official N55 BM3 software licence linked to your VIN
  • One OTS map included - Stage 1 or Stage 2
  • Access to cloud tuning, logging and diagnostics
  • Free ENET cable to get flashing straight away

Warranty and emissions notice

Modifying engine software may affect your manufacturer warranty. Certain functions are intended for off road use only. Please ensure compliance with local laws and regulations.

Search-friendly terms

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