Dual Snorkel
I cut them with a hole saw on a drill. I can't remember the exact size off the top of my head, around 4". I bought the rubber grommets first and measured them. If you go slow and have a new sharp hole saw, it does a good job. You can clean up the cut with a file and the grommets hide the rest. Remember to touch up the raw edge with some paint.
I got my scoop from these guys. Its very solid and as close to the OEM that I could fine. comes with the mounting hardware.
http://www.moparplus.com/product/dual-snorkel-scoop
Heres a thread with pictures I did back when I bought it.
http://www.forabodiesonly.com/mopar/showthread.php?t=164776
Thanks