The bullits had NO drone before, but once i did the head swap right at 1800 where im always cruising drone is INSANE. Ive never been one to be bothered by drone, i had flowmasters before and I didnt even notice the drone, but this is some SERIOUS drone after the head swap. Definatly gets louder at the higher rpms though, gotta love it 
Im gonna stick it out with the bullits though, I really love them alot, the sound is just amazing, and after the head swap and with my cam, everytime the cam lopes its like a slap in the chest, its amazing.
Im gonna stick it out with the bullits though, I really love them alot, the sound is just amazing, and after the head swap and with my cam, everytime the cam lopes its like a slap in the chest, its amazing.

