do i need to bring my smarty back to stock setting b4 downloading new file I wanted to go with aftermarket turbo stock injectors there are 2 files 4 moderate do I just pick one or is there a method to the madness also I have a quad xzt preasure only should I be using a # with extra timing

 

You do not have to bring Smarty back to stock to change SW or to download new program to the Smarty before downloading to ECM.

The first file is really more for the 03/04 guys, second file for 4.5 up. Choose the second file for your '05.

Your XZT is pressure only so you can absolutely use the odd numbered Smarty SW.

Enjoy!