Quote Originally Posted by SilverBullet75 View Post
The guy from the Emissions Lab at the DMV told me that EVERYTHING must be swapped over. Even the gas tank... (if) There is an EVAP monitor on the tank that measures volume and vapor amount. Basically, you have to do a full change-over to the donor vehicle's emission system... even if your vehicle didn't have said systems.
Doesn't seem like it would be that bad except for the gas tank part, but you'd almost certainly be way better off to buy a donor vehicle rather than individual pieces. Setting aside the gas tank question this means you'd need the engine, intake, MAF sensor, O2 sensor, ECM/PCM, headers, cats, and mufflers at a minimum. With a donor vehicle you'd have pretty much everything you need, with the exception of any custom exhaust "plumbing" work. At least that's my view as a non-mechanically inclined reader.



Buffy (Greg) - I think paragraph 5 pretty much bans the Trooper 3.1 diesel swap you were considering.