I have standard cats, Cobra Y pipe & resonated exhaust. There is a good sound to it when you put ypor foot down, but not too raspy. IMO you will have a slight drone with whichever aftermarket exhaust you go for. I personally find the "drone" wih the set up I have bareable. Isn't too bad, but when I put my foot down, it does put a smile on my face :-). Purchased from Cougar Store, highly recommended. Good luck with your search!