I've got a kind of unique set-up - it's been a long evolution of trial and error ...
FC 4-2-1 header, 2.25 flex pipe (bosal ?), 2.25 high flow cat, relocated 2nd O2 sensor, and magnaflow cat back. I'm currently working on adding a second muffler to cut down on noise (busted by the Troopers). Also, it should pass connecticut emissions - will find out in about 10 months. It's mostly all stainless steel and gave me about 2 mpg average gain.
Cost about $900-1000 so far...
Zetec Crew #83
02 sedan ---> now an SC'd se.
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Now intercooled 201whp & 186wtq on 93 octane
Hey -- we don't know nothing about kids. So if you need something... Find it yourself. Or better yet, learn to do without.