So here's what I got coming for the muffler:
MagnaFlow Exhaust Products - For Trucks, Suv's, American Muscle, Diesel, & Sport Compact Vehicles
And here are the tips:
I decided to keep the look of the stock tips because it's distinguishing factor of the 4.8is.
I'll be keeping my stock cans till I conclude whether or not I like the new set up. Afterwards, I'll be looking to sell them with tips still attached. So if you want them keep on the lookout for the updates in this thread.