well the tester guys didnt know crap about diesels, there were 4 of them looking under the hood of my truck for a few minutes, they wouldn't let me get out of my truck, one guy came up and said "i dont see any emissions devices what did you do to this truck, i said nothing check your book there are no emmissions in 02 just california only" about a minute later after looknig through the book i saw his say to the guy next to him "california only". they did the snap test 3 times and i was gentle on it and then he said ok your good to go.