Leo Vince Factory EVO II Slip-On Exhaust Honda CBR600RR 2007-2012 Factory Slip-on systems have either a Titanium or Carbon Fiber muffler with a Carbon Fiber end-cap and mounting strap. In addition to providing significant weight savings, SBK Factory systems are designed to enhance looks, and increase horsepower with stock jetting or fuel injection settings. SBK Factory exhaust systems offer CAD/CAM design for precise fit All Titanium internal muffler construction Available with Titanium or Carbon Fiber sleeve Substantial weight savings over stock Boost horsepower across RPM range (linear power) Carbon Fiber (Full and Slip-On) or Titanium muffler (CORSA, Full, Slip-On) Removable EVOII sound insert for more aggressive tone NEW Factory under-tail muffler redesigned for a more distinct look in 2011 Machine-specific tuning to work with stock fuel settings Most applications NOTE Please check local laws before purchasing. Some modifications may be prohibited in some states.