Just cammed my 5.3, looking for an exhaust right now..
Ive heard many setups..xr-1s, magnaflow dynamax ect..they all sound good, but a little too muffled..i want something that is higher pitched with some bite to it.
something along the lines of this.. higher pitched with some teeth!

Obviously this has other **** going on other then exhaust creating that.. but, using it just as a rough outline of what i want..
If someone could suggest something i would really appreciate it

 

Gonna be hard to recreate that in a truck imo without a ls3 with that cam

 

i think your going to want some high compression and have the mufflers then tip little to no pipe after the muffler.

 

Corsa maybe? They have a European sound with a higher pitch, at least to my ear anyhow.

 

Corsa is the exhaust you want with NO cats. Here's a truck with a Corsa exhaust.

I've got a Corsa diesel muffler on my cammed turbo 5.3 and sounds damn good!