Basically, they aren't a direct fit and you're going to lose your stock cat. If/when (money is getting short) I do this, I'm going to go with the long tube headers from FocusSport.com.
You're going to have to put a pipe on the end of the header to get up to the flex pipe, and then put a cat under the car where the resonator used to be. I'm going to also consider a glass pack to quiet things down some more while I'm at it, but that wouldn't be necessary. Should be a fun project if I can scrape the money together.
In other news, I got the intake pipe from ZXtuner today. I'm going to test fit it this weekend and send it back so he can figure out how to make them up for the rest of ya'll.
