Contour Enthusiasts Group Archives Forums Modifications Duratec Maintenance gut main cat - howto?

Originally posted by Buckshot77:

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Buy a high performance type, or replace with a straight pipe. Gutting the main cat slows down the exhaust path by creating a big open chamber and it will lose power.

Rick

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It should thoeretically lose you power - but with my main cat gutted and not much else (UDP, stock SE exhaust minus resonator, SVT TB and KKM) my SE got 154 hp and 156 tq. If the cat gut lost me power I must've had a heck of a factory freak to start with