Thanks guys, man I didn't pass my smog like 3 times, I was referred to Best Muffler Shop, who wanted 1300 to replace 1 catalytic converter " get outta here! " looked @ some reviews on Yelp & found these guys. Found out I needed to replace 2 converters. So it cost me round $275 each, was outta there with a bill of under $600 in an hour ( no more engine light on) passed my smog with flying colors Note: Drive at least 60-70 miles before you take it back to get it re-smogged. Thanks Advance Muffler, diffidently, got the job done.