It is on an 04. I do not have the y pipe setup. It is a 3" in 3" out bullet. I do not know the model number, I bought it off here late last yr. It was brand new when I got it but did not have the original box. As soon as I get the factory muffler I just bought today I will be swapping out which will be first of next week. I dont have any pics right now but will take some when I get it off. Is the model # on the bullet anywhere? Ifso where and I will go get it.