I have a 2002 XR650L that I bought new. I am pretty sure that the 2012's are identical to my bike except for the BNG's (bold new graphics!) and the colors of the plastics/seat.
Since my bike was purchased in California, it came with all the smog stuff. A review of the specifications for the 2012 model reveals the following: "Emissions - Meets current CARB and EPA standards. California version differs slightly due to emissions equipment". I would interpret this to mean that non-California bikes do not come with the smog stuff.
Here are some of my thoughts regarding the XR650L.
-The basic design is now close to 30 years old. You'll have to decide for yourself whether this means the bike is "outdated" or "classic".
-As delivered by the dealer, the stock bike is a dog. If you want reasonable performance (i.e., fun) you will need to plan on uncorking it. This is not difficult, but does involve removing the airbox snorkle, rejetting the carb, drilling the carb slide, etc. These mods will really wake this bike up!
-The smog stuff does not affect the performance, it just adds weight and looks ugly. I removed it on my bike.
-This bike is a tall, heavy bike. After a few times riding it off road, I decided it was too much for me to handle in the dirt. I have since added 17" sport bike wheels for the super moto look and ride it primarily on the street. This lowers the bike considerably and it is a blast to ride on the twisties.
-I love my XR650L and will probably never sell it.