This Month's Special Buy!


Downloadable Software for the Powerjection III EFI System:
Note: This EFI system has been discontinued by Professional Products and is no longer supported by the company. As a courtesy to customers with this EFI system who need to replace their software, we are making it available here:

If the label on the ECU mounted on the side of your throttle body has the word RETROTEK on it, you will need either V2.0 or V2.1 Software. You may need to try them both. Only the correct one will load.

If the label on the ECU has the words " With Spark Control" on it, you will need V3.0.

Click here for a feature by feature comparison chart of these EFI Systems