my check engine light came on yesterday and i went to autozone ant they told me it might be the cats or my o2 sencers. this is what i have on my car it has ijen CAI
race dev. hotshot headers, and a greddy catback sp2. thats it its a 2001 gt with 40005 miles can any one let me know what i can do to fix it i already did the toning on the car dont know what else to do i heard that i might need to go to the dealer to get it reset?