It was worth the $250 for me, I ride between 0 and 8000 feet and sometimes in the same day so jetting is a real issue. I really sucks when you start climbing and the power starts to fall off and rpms start to drop because of the altitude or temp change. Ever since I installed the ATTAC I don't have to do any jetting until about 8000 feet. We also have huge temp swings here in AK one day it could be 30 degrees and the next it could be -20. I've never been to Minn. in the winter so I am not sure of the terrain or weather there so it may not be worth it there.