Seriously, headers on a Y-body are a do it yourself job, as is the LS6 intake mani. There’s no reason to wait on all the other goodies for those. And get a freakin’ stock C5Z06 Ti exhaust. I’m telling you, nothing sounds like a C5 w/ LTs, no cats and the Ti. Skip to 2:30 for an example: http://video.google.com/videosearch?q=norcal+hyphy&emb=0&aq=f&aq=f#
And stop being a little secret-having bitch boy. Just admit you haven’t spec’ed out a cam yet and we can kick some numbers around with you.