Critical parts are not going to become un-availible, Joyner is a Multi nation vestment and they are being distributed all over the world except for the US, EPA and CARB approval is holding those units back at the moment, I hear that they will be back in the states soon, I hope so becuase talking to the other distributors around the world the 2011 Trooper is leaps and bounds above even where the late 3 level 2009's were. The trooper only being 2 years old, it did make vast improvements, and continues today.
Jarrad