MHD Flasher

In-app purchases
4.9
956 reviews
100K+
Downloads
Content rating
PEGI 3
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About this app

MHD Flasher is a complete flash tuning app for your BMW & Toyota Supra A90. Unlike a piggyback module, it is capable of complete DME remapping while retaining all OEM safety mechanisms. This allows for maximum performance, maximum safety, and unrivaled drivability.
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Full OBD Flashing:
You can install MHD right at home and start tuning immediately! Simply download the MHD Flasher app that connects via a MHD WiFi adapter and your vehicle’s OBD-II port, start the app and within 5 minutes the initial installation is complete. Further map changes are much faster - only 20 seconds! You can revert your vehicle to the factory OEM flash at any point, and no initial backup is necessary.
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E-Series N54 Stage 1, 2, and E85 OTS (Off The Shelf) Maps by Wedge Performance

E-Series N55 Stage 1, 2, and E85 (Off The Shelf) OTS Maps by Twisted Tuning

F/G Series B58/S58 Stage 1, Stage 2 and E85 OTS (Off The Shelf) Maps by PureBoost

N55 EWG (Vehicles built after 07/2013 with electronic wastegate):
- Stage 1 (up to 360HP/540NM) (not available for M2 and X4 M40i)
- Stage 2 (up to 390HP/580NM)
- Stage 2+ (up to 430HP/630NM)
- Ethanol Mix Maps: Stage 1, 2 and 2+ E20 Maps for ethanol blends of 20%

N55 PWG (pneumatic wastegate):
- Stage 1 (up to 340HP/540NM)
- Stage 2 (up to 370HP/580NM)
- Stage 2+ (up to 400HP/630NM)
- Ethanol Mix Maps: Stage 1, 2 and 2+ E20 Maps for ethanol blends of 20%

S55 (BMW M3 / M4 F8x):
- Stage 1 (up to 530HP/700NM)
- Stage 2 (up to 560HP/780NM)
- Ethanol Mix Maps: Stage 1, 2 and 2+ E30 Maps for ethanol blends of 30%

B58:
- Stage 1 (up to 440HP/600NM)
- Stage 2 (up to 470HP/650NM)
- Stage 2+HPFP (up to 500HP/700NM)
- Ethanol Mix Maps: Stage 1, 2 Maps for ethanol blends of 30%

S58:
- Stage 1 (up to 630HP/750NM)
- Stage 2 (up to 700HP/850NM)
- Ethanol Mix Maps (up to 750HP / 880NM): Stage 1 & 2 E30+ Maps for - ethanol blends of 30%+

S63:
- Stage 1 (up to 720HP/900NM)
- Stage 2 (up to 780HP/950NM)
- Ethanol Mix Maps (up to 800HP/1000NM): Stage 1 and 2 Maps for ethanol blends of 30%+

N13:
Stage 1 (up to 200HP/280NM, 93oct/98RON)
Stage 2 (up to 235HP/350NM, 93oct/98RON)
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MHD+ Custom Code: Live Tuning - On The Fly Map Switching - On The Fly Exhaust Flap Control - Anti Lag - Flex Fuel - Single Bank - KnockCEL - No Lift Shift - Shift Brap - Full Motiv ReFlex 2 Way CANBUS integration with DME PI control
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Full Data Logging and Live Gauges: Monitor your engine behavior to make sure it is running perfectly using a configurable and very responsive gauge layout. 50+ engine parameters are available at a glance!
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These flash options can be applied to any map directly through the app:

- Anti Lag (N55/S55/N13 only at the moment)
- Exhaust Burble (duration & aggressiveness, min/max speed, min/max rpm)
- Remove top speed limiter (Vmax)
- Cold start noise reduction
- Exhaust flap open in sport mode
- Limit power per gear
- XHP TCU flash support (optimized OTS maps)
- Sport cooling mode for increased water / air intercooler cooling
- and many more
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Check out our homepage / user manual for more information, supported cars and recommended modifications for each stage.
Updated on
Jan 24, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.9
836 reviews
E
January 24, 2025
Had a no start issue with an update, response to email was A1, an update to fix the issue was pushed out in less than half a day, better service I have not found as yet, keep up the good work.
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Ancel “Shwell” Robinson
December 3, 2024
Great app. Allowed for simple tunes to match the hardware installed. 2016 BMW 535 MSport FBO + FLEX. App has been great! Easy to install and simple instructions to follow.
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A Google user
November 19, 2018
The tune is great, super smooth and really powerful. It's awesome to be able to easily load a tune at home. I've had tunes loaded by shops on other cars and it meant spending hours in their waiting room while they fumbled around figuring out software and talking to the tuning company. This took me about 5 minutes of actual work and 40 minutes of wait time, at home, where I could have a beer and do other things. Flawless process and performance.
21 people found this review helpful
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What’s new

♦ v4.84 ♦
✓ Added new S55 flash option: Custom throttle pedal mapping per mode (normal/s/s+).
✓ Updated S55 OTS maps to 1.13: Fixed mid throttle overboost/brap in sport+.
✓ Corrected a CVN reporting error for F series N55/S55/N13/S63.
✓ Fixed "aux pressure low" detection at start-up on split fuel systems for MHD+ Gen2 B58 and S58 vehicles.
✓ Added back N54 max cool to live adjust.
✓ Add MHD+ support for B58Gen2 5D5532DC05 rom