I had to sell by beloved modded sports car when I moved to California. It blew clean as a whistle, but since the aftermarket parts were all from out of state (installed over the course of years), the state failed it as “tampered.” What a pile of shit. These guys are somehow driving around rolling coal on cyclists without getting grief, but I have to get rid of my car because it doesn’t have the right CA stamp on the intake system. CA’s system is terrible for home mechanics.