for exhaust I tried the Cobra and wasnt impressed as it had a tinny sould. I then purchased a set of Vance and Hines they are the ticked, I have heard the bike with a set of Hard Krome on and it is nice and deep too. the ratlle is probably the bottom of the windshiel at least it was on mine. I simply put a plastic stickon cupboard door isolater between the two plexiglass pieces and problem solved