I pulled off my end cap and cut it out. I also board the 2 tubes and cut them short. Not the full mod but hey I am cheap right now. I will NOT modify the air box. Where sould I start with my Dyno Jets? My thoughts are starting with the 185 and needle in the 2nd position. They say 1 and 180 for NO mod and 190 and 3 for full mod. I am under 1000 feet. I will be putting on a slip on next spring. I hope for the HMF...