718 GT4 / Spyder / GTS 4.0L M-Engineering ECU Software


Unlock extra power and increased response on your 718 GT4 / GTS 4.0L with an M-Engineering ECU tune, making the most out of your SOUL performance upgrades through software optimization. Or, use the new M-Coder to dial in custom features such as full valve control, datalogging, fault code diagnosis and more, or reverting back to stock at your convenience. Do it easily through your OBD2 port without removing your ECU!




M-Engineering has been at the forefront of Porsche ECU tuning, and has spent countless hours of research and development to provide reliable performance improvements.

The M-Tuner Calibration Suite will allow at-home OBD flashing, no ECU removal necessary. Adjustments are made to improve the throttle response, remove top speed limiters, adjust air/fuel ratios, and modify ignition timing and much more to improve the overall driving performance of the 4.0L engine. M-Engineering still utilizes all OEM ECU engine safety strategies.

But if you’re already happy with the power from the factory and just want the exclusive M-Tuner features, the M-Coder is the simplest way to get added features to your car. The M-Coder features the ability to read and clear engine faults, datalog, view live data, and flash back to stock at your convenience. M-Coder will get you the ability to flash a Stage 0 map (no power added) with whatever custom features you want.

Available custom features – Any number of these can be included or excluded at no additional cost, choose as many or as little as you would like:

  • PSE Exhaust Valve Modifications (true ON or OFF function, no need to buy a standalone PSE valve controller). Our most popular modification! Adds sound and power without any hardparts modification.
  • Loud Cold Start Elimination
  • Auto Start/Stop Elimination
  • Removal of pops and burbles in sport mode
  • Free-revving in Neutral (no longer limited to 3500rpm)
  • Elimination of codes for exhaust-valve deleted cars
  • European OPF Support


Stage Hardware Requirements and Results

  • Stage1 – Designed for a stock vehicle with or without aftermarket air filters

  • Stage2 – Designed for a vehicle with aftermarket exhaust components


M-Engineering’s OBD2 dongle is an effective way to upload tunes to your car through their software. With the dongle connected to your car, the software is able to read your ECU and that information combined with your octane of preference and mod list helps M-Engineering deliver the best results.

What octane are these tunes compatible with?
Files are tuned accordingly to your preference.

If I add an exhaust or intake, do I need to reflash my car?
No.  Each individual table is tuned. Unlike others that do a global change to files, M-Engineering enables the ECU to adapt to basic bolt-on modifications like exhaust, intake, headers, etc. The only time you need to re-reflash your vehicle is when you change fuel components, turbo sizes, or engine internals, etc. Pro-Tunes are available for your heavily modified vehicle.

How does the full valve control operation work?
The factory valves are electronically controlled and have a variable range of motion unlike traditional full open / full closed valves. Even with PSE activated the valves can fluctuate anywhere between open and closed. This option allows for full manual control to force the valves open during PSE mode by request.

ABOUT M-ENGINEERING: M Engineering has over 15 years of engine and transmission calibration experience. Mitch has contributed calibrations to multiple high caliber, championship winning teams over a wide variety of racing disciplines, including road racing, drag racing, hill climbs, rally racing, and drifting. As a reverse engineer, Mitch was the lead on a project that was responsible for bringing Porsche aftermarket engine and transmission tuning to the mass market.  Mitch has also consulted with multiple OEM part manufacturers for various products.  Jon has just under a decade of experience calibrating many different platforms in motorsport, R&D, and high-volume retail settings. Over the years Jon has developed a high level of understanding in European, Japanese, and American OEM engine and transmission control strategies. He has grown to specialize mainly in European engine and Dual-Clutch Transmission calibration.  Jon was responsible for most Porsche engine, Porsche PDK, & Ford calibrations used widely in the aftermarket on popular flashing devices.


  • Each tune is paired with your specific vehicle through a license key and can only be used on one vehicle.
  • Have any questions? Concerns? Contact us at any time to discuss upgrading your vehicle.