I went to meineke today to see if they could install my headers and high flow cats. He's like let me see the system, he looks at the system and says your changing out the cats? I go of course high flow cats come with the mopar kit. He goes i cannot do that its against the law to change out working cats for another cat. I said to the guy, how is it illegal when the dealership sells and installs these kits? He's like its against the federal law and i want nothing to do with it and he walked away...........