X5er's

This is really something new to me. My wife's car (2000 528i) needed a smog check. So I brought it to a smog shop yesterday. As soon as the Tech open the hood and see's that I have a CAI. He already advice that it will not pass the smog unless I put back the OEM. He said that this is the new DMV law?

Just wondering.

Thanks

Bing