this thread reminds me of when I was in a certain PNW dealership some time ago before I got my 04. I went in asking for info regarding the new 04's to help me make a 2003 versus 2004 purchase decision.
the sales manager claimed to have a inside track into Cummins and that the new trucks were to have an "exhaust valve". He said the 2003 trucks were the thing to have and that a lot of guys were buying up the then-frozen 2003 inventory to avoid the 2004.
Well, of course the 2004s don't have an "exhaust valve", I quickly learned from Dodge themselves that the early 04s had the same engine as the 2003's, and that the big emissions hurdle was January, 2004, not the 2004 model year. And, as we all know, the 04. 5s don't even have exhaust gas recirculation.
there are some dealers and sales people that are just plain honest and helpful. others can't be trusted any further than you can throw them. I certainly won't darken the door of that dealership again. Thankfully I found a dealer that is both helpful and honest, and one that will receive my future business as well as referals. I hope the good apples outnumber the bad apples.