4 - 2 header
 

I want to put real dual exhaust on my 96 civic, but I've been told that there are no 4 - 2 headers made for a civic. Is this true, and if it's not, where can I get one? I need to have some income tax fun and if I can't do this the right way then it'd kinda be useless.

I'm sure there are a lot of 4-2-1. Check DC Sports first.

what is teh desired effect by adding "dual exhaust"

Looks, sound, and my own personal taste.

Oops, didn't realize you wanted a 4-2 straight out the back.

Your best bet is to do a 4-2-1 and split the piping later so you won't loose too much back pressure and exhaust velocity IMHO.

^agreed take a 421 and then put a Ypipe on it and run duel piping to either side

thanks guys. I figured a 4-2-1 would be the best route to go mainly because of the back pressure issue.

And while on the subject, I'm getting a new header but I know that some problews will arise. Mainly because on my car the cat is on the header and with out a cat the O2 sensor will make my car run a little whacky. I once found a thing that you hook to your O2 sensor that sent a fake signal to you computer telling it that everything was ok. But I have no idea what site I found it on and I was wondering if any of you might know where to get such a device?

And what's the best way to go with a cat? Use a nice hollowed out one to fool people, or break down and buy a performance cat?