3.1 Exhaust question

[Lofty]

Ok, so recently I discovered that the Cat on my 02 GP SE was clogged causeing performance issues. Rather then spending 300-400 bucks getting the cat replaced, I just removed the Cat and put in a straight pipe.(Emission tests aren't required here) I know the SES light is on because of the missing cat so I know I need to get the code deleted. I was reading some other posts and saw some people saying they removed the cat and their fuel economy went down. What do I need to do to make sure I am not going to have the same issue?

[iroc2]

intro please

replace the cat. that is the only solution if you dont want to loose gas mileage. either that or maybe dummy o2's should work