I know the smog guy can't see the cams, but anyone taken the sniff test with the cams on in Cali?  Secret Cams or even something lumpier?
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Secret cams are close enough to stock it *shouldn't* matter. I'll find out soon on  my 99.
Read over this and do what it recomends. 
http://www.smogtips.com/
 
 
keep the car running while your inline to keep the cat hot 
also change the oil before you go to test , like maybe a week or so before