tdpusher

Actually all the GM dealers that I checked with have the same OE Cat only, it's runs approx $950. I saw an OE cat from one of this forums advertisers for about $100 less. I'm more interested in one's like the magnaflow 62246973 for about $150 and if anybody has run these as a replacement to pass smog, either diy installed or at a muffler shop, thanks

HI! I'd like some help on finding a CARB California cat converter for my 2005 Silverado SS. 1st owner, first time having to replace this part due to an upcoming registration mandated smog check. If you have experience with these (specifically the left side, under passenger floorboard) having been required to replaced them personally or just personal knowledge, please share. The part # that I came up with for a dual cat setup with CARB compliance is 15077752 which goes for about 950$ through the dealers here in Northern California. Thanks for the input