Graves Motorsports Yamaha R6 Carbon Slip-On. Graves Motorsports hand-made in the USA Carbon slip-on Silencer for the 06-12 R6. The exhaust sounds great and is not to loud despite removing the stock exhaust silencer. This is because a majority of the sound damping is handled by the muffler under the bike not the exhaust silencer on the side of the bike. This exhaust system is offered with a Carbon Silencer and features conical Titanium endcaps in your choice of "Standard" or "Polished." Use the pull down menu to select your desired style.