For which cobra? 4.6 or 5.0? Either way... i have stock headers into a Dr Gas o/r x-pipe, with Turbo Tube mufflers (straight thru mufflers, kinda like glasspacks without the glass), and stock tailpipes. I LOVE the sound. It sounds amazing. I dont know how to post sound clips, if i did, i would. Car sounds awesome with the cam too.