[John Rogers]

You will have to check to see if the state you live in requires the smog equipment must be purchased from the dealer and be dealer installed? This is the law in CA and the total cost for a cat for my 2007 Chevy HHR would have been about $1200 and the dealer does not have them in stock! I checked with several muffler shops, even one close to the Mexico border and they said they can not even sell me one! BUT the guy at the last place told me the ones the dealer sells are exactly the same as the best one sold by ********.com! Of course they will not sell me one either......but I have two daughters who live in Phoenix, no smog issues so they ordered one then sent it on to me. The factory one has a tag on the top - rear that is not visible and the new ones works exactly the same as the dealer one, $168 vs $1200 and no smog issues.