I installed a CAI and Scorcher in August and all was awesome until I towed my four place enclosed snowmobile trailer to Munising Michigan 3 weeks ago. On the way home it was 2 below and the engine light came on. I took it to auto zone and found out it was a mass air issue. I immediately put the stock air box back on, removed the scorcher and went to the dealer. They cleared the code and the service manager was nice enough to pull me aside and tell me not to put the aftermarket parts back on!!! I am beginning to wonder if it is worth it. I'm not a mechanic so how did they know I had that stuff installed?