ironpony sorry didnt see your post until now. I guess I would rather change the cat every so often rather than the headers.
I plan to make the ypipe from the headers out of 080 wall 304 like the one on there now, so I wouldnt mind wrapping that because I know it can take it. It's just the headers I was worried about.
Maybe wrap the cat too? I dont think ive heard of people doing that but maybe it'll help it last longer than a year.