They are vin locked.
You would buy this from wantcum, call or visit Livernois. For a fee they will get you set up for whatever car or truck with whatever motor it has in it. You’ll need your vin and engineering code off the computer. Livernois will provide a link to the downloader and email you the tunes you requested. It’s a pretty simple process.
Call and ask for Anthony @ Livernois
Not me.