MHD N55 E-Series 4+

MHD Flasher is the first iOS mobile application to bring ECU tuning and monitoring to the BMW N55 engine for E series. The MHD Flasher reveals the good margin of power BMW left on the table with the N55 while still retaining the sophistication of the original engine management program.

- Easy to install
Connect any compatible iOS device to your car using our Wifi adapter, install one of the pre-purchased MHD maps and enjoy the power and performance benefits of the MHD maps by Twisted Tuning.

- Keep an eye on the tuning
Monitor your engine behavior using a configurable gauges layout to keep an eye on any of the 50+ engine monitors like oil temp, boost pressure, actual load or individual cylinder ignition timing. Activate the logging mode to save up to 50 monitors to a standard CSV file for later analysis. Track issues by reading the error codes, and delete them once resolved.

- Flash your ECU back to a stock anytime, as often as you need to. No ECU backup is needed.

- Custom tuning support
As an alternative to built-in maps, many tuners can provide advanced custom mapping for those who have higher or special performance needs.

Main features description:

* Flasher module *
- Flash built-in maps (purchased separately), custom user-tuned .BIN files or JB4 flash maps.
- Provides an ever growing list of handy options like PPK exhaust burble duration or cold start noise reduction.
- Read / delete engine trouble codes.
- Reset the main DME adaptation values.
- 1 minute map switching; initial install time: 7 minutes.

* Monitor module *
- Extensive logging values list, up to 50 values at the same time.
- Save logging session to .CSV files
- Integrated csv log viewer
- Up to 8 configurable gauges

* Optional MHD maps packs *
- Maps by Twisted tuning
- Stage 1 pack. Eight maps: 4 fuel octane variants, stock / upgraded FMIC variants.
- Stage 2 pack. Eight maps: 4 fuel octane variants, stock / upgraded FMIC variants. High flow downpipes recommended.
- Ethanol mix map (e30). FMIC+DPs recommended.

Supported vehicles: N55 equipped Exx series.

2010-2013 135i, 135is and 335i
2013-2015 X1 35i
2010-2013 X5 35i
2011–2014 X6 35i


This racing product is for competition closed course use only.

Required hardware:
- 1 device running iOS 10.2 and up.
- 1 MHD Wifi Adapter