Garage Auto Sports

GASFlash3+ OBD Flashing Device

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The GASFlash3+ is our newest end-user tuning tool, allowing you to flash your ECU+TCU from home!

This touchscreen programmer comes with our GASFlash3+ software, compatible with Windows operating systems. Simply plug the supplied OBD cable into your vehicle, send us your stock file(s), and flash your new tuned file in minutes. The programmer allows you to store up to 5 different calibrations plus an original file, allowing you to flash the tune of your choice or return your car back to stock at any time.

After placing an order for the programmer and software of your choice, you will be shipped a GASFlash3+ device including instructions on how to get started, which can also be found here.

If your ECU/TCU software in the Tuning section of our website shows: "This ECU is compatible with our GASFlash3+ OBD Programmer", then our tool supports it. If you have questions or don't see this message on your software page, please don't hesitate to send us a message! We are testing new ECUs every day and our compatibility list is constantly updated.


  • GASFlash3+ programming tool
  • OBD2 cable
  • Mini USB data cable


  • Flash your vehicle from the comfort of your home
  • Read & clear fault codes from the engine control module
  • Store multiple tuned files
  • Flash back to stock at any time

GASFlash3+ software is required to set up and manage the flashing tool, and can be downloaded here.

Installation instructions and user manual can be found here: GASFlash3+ User Manual V1.0

This tool requires the purchase of GAS ECU/TCU software. If you purchase this tool by itself, you will be invoiced for the appropriate software after sending us your stock file.