Thanks for the reply. I've been in contact with bbp, they are just really really backed up right now. Ive requested a few options. 1. Their tune for the whipple 2. A factory tune for my tahoe so I can get the whipple tune to start (whipple requires factory tune as a start) Just trying to be prepared for all outcomes. It will be a few more weeks before the sc is delivered so i still have some time. Below is what was listed. Its in my paperwork as well, in the garage somewhere.