i am thinking of putting the small flowmaster single chambers on my 06' GT, it is stock for now i was just going to cut the stock mufflers off and put the single chambers in its place.
my buddy has an 05' GT and he has the 40 series, i want mine to be louder than his Anyway will they mess up the car any since they are race mufflers??? Thanks

 

does anybody have these??? how doe they sound???

 

there is no "e" in the word "do"....

 

They won't mess the car up unless they are more restricitng then the stock mufflers. Which I doubt. Even then, it'll only be costing you performance. As far as sound, it's something you will have to do a trail and error on. There are so many exhaust setups that you really have to find something that you like. I don't think you can ever go wrong with Flowmaster. Even their 05-06 setup. It isn't very loud, but it still sounds good.