I'd consult with others, but from what I've heard the headers are not going to net you much power and that you will probably be dissapointed. But hey, I can't speak from personal experience on this one so maybe someone else can chime in.

I will say that I like the sound of an O/R pipe on a catback. Unless you are going all out with your car, you could probably better spend the $$$ you'd spend on the headers and be happier with the results.