MHD Flasher N54

MHD Tuning UG

About this app

This app is being retired. Please switch to our unified "MHD Flasher" app which now supports all E/F/G series vehicles / engines as well as Supra.

This app will remain as a shell to help you switch over. Additionally, some functionality will remain to read and clear engine DTC error codes, graph and analyze your prior datalogs, view your existing vehicle licenses, and access the user guide!

Ratings and reviews

Was working fine. App keeps telling me to log in after a few days of it being installed. Then it won't let me log in when that happens. Have to Uninstall the app, Re install it and reset all the monitor gauges. Pretty annoying. 8 months later, still the same issue. The very next day after a fresh install ita asking me to log in again, and gives me an error "something has gone wrong. failed to obtain information about key"

This app for me has become the most useful tool for finding error codes and tuning. Easy flash tunes, easy connection, and the best part is that it only takes a few minutes to flash a tune. MHD also provides the burbles setting, which you can adjust the aggressiveness and duration to your liking. After tuning with the correct aftermarket parts, it really feels like a different car. This is the way to fbo!

Very easy to use. Great performance upgrade. Stock clutch with 100k miles didn't like the tune, but probably needed to be replaced/upgraded anyway. Like a large selection of additional options & gas maps. First flash takes ~40 min over WiFi, subsequent flashes take about ~2 min. Very cool program. Upgraded clutch highly recommended with the flash.

What’s new

- Our separate N54 and N55E apps are being retired. Please switch to our unified "MHD Flasher" app. This app will remain as a shell to help you switch over.