I did the instructions for the 660 air box mod with a slip on uni filter. I posted it on here and it seemed to be fine. I took it on one kinda long ride and since have just ran it around the property a little bit. Well today I was doing some maintenance and pulled the air box lid off and it melted the coupler that the filter was on. What could have caused this? I think I’m going to try and find another air box and go back to stock what a joke. The filter wasn’t entirely off but it there was a gap
