Here you go, no more speculating hxxp://www.dmvnv.com/emission_diesel.htm, just replace the x's with t's. I don't have to smog my 3500 because my zip code I'm in doesn't require it.
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03' Dually 4 x 4, 4" exhaust
HTB2/62/12, CFM+, AFE Torque Tube
FASS 150, Stage 1 cold air box
Smarty/Puc(60hp),stack/TST-6/0
Goerend Trans.
Westach Combo Gauge. 51" Donaldson