yea that fender has to go. it sounds awesome, it's loud deep and rich, and it screams at the top. sounds better than my cousin's Yosh on his gixxer750. but as expected, i lost low-end power. the worst is, i can noticeably feel the dips and peaks in the power band. i bought a Power Commander with it so it should be smoothed out as soon as RMC can make me a custom map.