What's best for the 5.0?

 

Best = Quietest?
Best = Loudest?
Best = Cheapest?
Best = Easiest to install?

Help us out here your question is to vague.

 

Best cat back, loud, and inexpensive

 

Well you're in luck.. you don't need to spend a cent just go get a hacksaw and remove the existing catback. With that done the truck will be as loud as it's gonna get with the factory cats in place.. which isn't that loud, and anything you put back on will only make it quieter.