Exhaust Upgrades?!?!??

[grfnkl]

I'm looking to upgrade my Catalytic Converter on My 02GT, The current one which i only had replaced a little less then a year ago is already going out on me. I was wondering if anyone knew of a higher performance Cat i could get to put in the car? My options at the moment are to get an OEM if warrenty still covers it, go high performance aftermarket, or go to a straightline pipe. I've had the car checked out everything runs fine, it's not running rich or anything. But i've noticed now that i do a lot of highway miles this has happened. Back in January i was getting 30+mpg highway now i'm lucky if i get 20mpg highway.

any opinions on what should i do?

[GTP Dad]

Try xtremeflow.com they should be able to help you with a high flow cat for your car. Also, you may want to check Andy's Autosport or PFYC for other exhaust parts for your Grand Am.

[Ridenour]

magnaflow also makes one for our car that's high flow.