That is the huge positive for them Kevin. They make my M8 sound almost as good as I had my 103 sounding. The downside is they are a cheap slip-on (buy 3 or more for just over $119.00 each) and I suspect the chrome is not the highest quality. I am trying the black ones but will probably still have issues down the road. Another negative is that compared to my Rush slash cut slip-ons I have lost almost an inch of clearance.