This is correct. One of my two modified cars came from CA at some point and had emissions equipment that was standard there but not on 48 state cars. Removal of

This is correct. One of my two modified cars came from CA at some point and had emissions equipment that was standard there but not on 48 state cars. Removal of it didn't impact emissions and the car actually runs cleaner modified than it did when bone stock. But you see a lot of people here who just assume modified == killing baby penguins with emissions or something. Trust me even the car guys don't like the straight piped VQ revving at the car meets.