I think you will like the sound of them for about a month or so and then they will burn out and they will get obnoxiously loud. If It was up to me I would put on a dual in dual out flowmaster 40 series or a Flowmaster Super 44. It is a little quiet at first but after a little time I think that will be a the noise you will be looking for. A nice rumble that will let everyone know your coming and and when you mat it you will really be heard.
I know I have 1 3/4" headers going into 3" exhaust no cats and into 18" glass packs and its redicously loud when you put your foot into it.
anyways its just a suggestion i know from experience so thats why im changing to a 40 series Flowmaster
hope this helps