Running no cat Options

[Justin]

Tomorrow I'm going to get some custom exhaust pipe made for my celica. I was wondering how much louder it would be without cat. I am gonna have 2 1/4 in piping with no resonators and a muffler. Also, I heard that if you dont have a cat there will be a very noticable smell indicating you dont have one. Third, would it give me any hp gains since the midpipe would now be 2 1/4 Last, how easy would it be for a cop to tell that you dont have one. I live in alabama and we dont have to go through any emissions or vehicle inspections

[Doge]

The purpose of a cat is to take away all the environmentally hazardous materials that come out of your engine. The gas passes through the waves or combs of the cat and mixes with chemicals that are fixed to the cat. The resulting chemical reaction turns the hazardous gases into safe gases. For example carbon DIoxide is safe...carbon MONoxide is hazardous...a simple chemical reaction can change one to the other.

i dont know for sure the gases that come out of an engine...so dont qoute me on the cabon monoxide thing...it was just for example purposes only

This post has been edited by Doge: Jan 10, 2004 - 2:19 AM