MHD Flasher
Unlock Your Vehicle’s True Potential
• Transform your BMW or Toyota Supra A90 from a stock machine into a high-performance beast.
• Unlike cumbersome piggyback modules, MHD Flasher provides a comprehensive DME remapping solution that works in harmony with your vehicle’s factory safety protocols, ensuring peak power without compromising reliability.
Effortless OBD Tuning
• Plug-and-Play: Connect via your OBD-II port using our WiFi adapter for an initial five-minute install.
• Rapid Updates: Switch between maps in as little as 20 seconds.
• Total Control: Revert to factory stock at any time without the need for manual backups.
• Industry-Leading OTS Maps We collaborate with world-class tuners like Wedge Performance, Twisted Tuning, and PureBoost to deliver tailored performance for specific engine platforms, including:
+ N55 (EWG/PWG), S55, S58, S63, B58, and N13: Specialized Stage 1, Stage 2, and Ethanol-optimized (E20/E30) maps designed to maximize horsepower and torque.
+ Custom Power: From the 200HP N13 to the massive 800HP S63, we provide the software architecture needed to push your engine safely.
MHD+ Custom Features
Take your driving experience to the professional level with our advanced suite of features:
• Live Performance: Real-time map switching, Anti-Lag, and Flex Fuel integration.
• Driver Engagement: No Lift Shift, Shift Brap, and customizable exhaust flap/burble control.
• Advanced Hardware Sync: Full Motiv ReFlex integration and KnockCEL monitoring.
Precision Monitoring and Customization
• Stay fully informed with our responsive, high-definition data logging and gauge interface, tracking over 50 engine parameters in real-time.
• Customize your driving profile directly through the app:
+ Performance: Remove Vmax limiters and manage power output per gear.
+ Optimization: Cold start noise reduction, improved sport cooling, and seamless XHP TCU integration.
Ready to start?
• Visit our website or consult our user manual for a full list of supported vehicles and the modifications recommended to reach your performance goals.
• Your ultimate driving machine is just a flash away.
FAQ
Q: Is the installation process difficult for someone with limited technical experience?
A: Installation is designed to be straightforward and user-friendly. By connecting our WiFi adapter to your OBD-II port, you can complete the initial installation in just five minutes using our mobile app, making it an excellent solution for enthusiasts who want professional results without complex hardware modifications.
Q: If I want to return my car to its original factory settings, is that possible?
A: Absolutely, you maintain total control over your vehicle’s software at all times. You can revert your car to its completely stock state whenever you choose, and because our system manages the software architecture effectively, there is no need for you to manually manage or store separate backup files.
Q: How long does it take to switch between different performance maps?
A: Once you have completed the initial setup process, switching between different OTS maps is incredibly fast. You can update your vehicle's performance profile in as little as 20 seconds, allowing you to adapt quickly to different driving conditions or fuel types.
Version History
v5.22——25 May 2026
MHD Flasher is a complete flash tuning app for your BMW Download the latest version of MHD Flasher to enjoy new features and updates immediately!
*5.22
- Added MHD+ support for new S58 00005C6414C808 ROM.
- Added MHD Unlocker support for a few DME versions that were missing.
- Fixed various app bugs / crashes.
*5.21
- Added basic flashing / logging support for new S58 00005C6414C808 ROM (MHD+ support to follow).
- Fixed “no internet” issue affecting some customers.
- Fixed boost target issue on B48 custom tunes when using boost per gear.
- Fixed OEM launch control torque issue affecting some B58 / S58.
- Fixed various app bugs / crashes.
- Misc quality of life improvements.
*5.18
- Flash back to stock can also be done without re-locking bench unlocked DMEs.
- Updated ReFlex I/O to support additional inputs on Gen2 B58 / S58 (must update ReFlex!).
- Added custom safeties for Gen2 B58 / S58 + torque limiter disable toggles for all MHD+ B58 and S58 to help common tuning nuisances (get latest XDFs!).
- Improved handling of dual DMEs (V8) after a failed flash on DME2 or if only one DME needed a Femto unlock.
- Improved detection of AT mail-in unlock.
- Fixed Honor OS9 issues
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