I used to live in mesa, and now live in colorado, the emission laws are the same in pheonix, it has to have the same year of engine or newer in the pheonix area, and if the truck came with a cat it must have a cat installed on the exhaust, you can get away with the muffler since their is no noise ordinance on Diesel Trucks.
With the common rail the hardest task will be making the computers talk to one another, and I preffer the common rail and 24 valve over the 12 valve, but thats just me. Common rail engines are more expensive over the VP44 24 Valve, but the fuel system is much simpler and better. Good luck, its not a cheap project, so get it done right the first time.
Last edited by RanchhandTCR; 07-04-2013 at 12:44 PM.
Reason: Automerged Doublepost