What about the flashing, I would need the necessary files the .bin, .xdf, .adx for my vortec 5.7. I saw some ppl flashing for the express van 5.7 2002? Could you please explain this to me?

Also...

Hello, I would like to make the swap from blackbox to 0411 PCM on a 1997 vortec truck l31.

I am new to this, I need to know please, where can i find all the necessary files? the .bin, .xdf, .adx...