Anyone know how much difference in sound there is? I am looking to get a set for my 99 F150. I don't want it to sound retarded loud but definitely want to give it more then what my current Flowmaster dual system has. Plus I have an exhaust leak from one of the manifolds and a cat rattle that are driving me nuts.

 

the resonaters aren't smog legal and are way louder

 

I am not worried about smog testing as we don't test for it here. But if the baffles are that much louder I will just go with the catted version so I do erk off the whole neighborhood.

 

A cat-less system will roar well. The catted version would be your best bet because even catted is loud with LTs.