Like he said if you look at the FAQ on the main page you'll find a ton of good advice and common questions/concerns answered. Im waiting for my set of MSDS headers and definitely from what I hear put them on OUTSIDE of the car! It may look tight but there is no difference in the engine bay of the cars that would affect the swap of a 3L block or SVT engine.
I would suggest getting a SVT upper intake manifold, 2000 lower intake manifold, SVT TB, cold air intake (or svt stock intake at the least), msds headers & Y-pipe mated up to a used SVT exhaust (if you want a cheap dual catback) and youll have one mean sounding tour with some added gas millage gains!
I have a lot if not all of the mods to my SE and its a killer setup!
A few things that the SVT has that you dont and probably wont want if your not concerned about big power are SVT cams, heads, computer etc.
Welcome and enjoy the car!
ps- depending on millage you may want to check the timing chains to ensure you dont have to deal with them, but you'll likely not have to worry about that.
