I have LTs with ory with the SLP loudmouth. It was way to raspy so I bought a couple cheapo summit glasspacks and put in the tailpipes. It really took the rasp out. I am happy with it so far and only cost me about 40 bucks..
http://www.youtube.com/watch?v=qwVziuK5hls


and here is the idle..
http://www.youtube.com/watch?v=HbiTuOJgXzs

 

Pics..

 

that sounds nice dude better than i was expecting...really cool

 

Thanks man. I figured if I didn't like it I could just pull the glasspacks off and throw them on my truck. I'm happy with it so far.