I don't know, but what replacement cat are you going to get? i've been running with a CEL for a while now, the cat is the next thing to replace, and i'm curious about options.
i buy alot of my stuff from http://www.sportcompactonly.com they TONS of stuff! just put your car in the search, and have fun:) im gonan go with the Mor-Flo ones......
Have: 2006 Pontiac Torrent. Perferred Package. Sun & Sounds Package. Blue Streak Color. Sirius Radio.