On a 98+ car I'm with Larry. GREAT sound, but bang for the buck.....NOT!
I was going the header route, but for $2k, Im still trying to find someone that has taken stock 98+ headers and installed a 3" collector / pipe connection. I might go this route with RT hi flows and B&B catback.
Anyone seen or know of anyone that has done some junkyard engineering on 98+ headers?