Yamaha Smog Block Off Plates Kit. Fits: Yamaha 2007 -2010 FZ6, 2009 - 2014 FZ6R, 2003 - 2014 R6, 2006 -2009 R6S, 2011 - 2013 FZ8, 2001 - 2014 FZ1, and 2004 - 2014 R1. Our BlackPath AIS Block-Off Plates are designed to replace the stock Air-Induction System installed on modern bikes. The air induction system (AIS) burns unburned exhaust gases by injecting fresh air (secondary air) into the exhaust port, causing the familiar popping sound from most exhausts on deceleration, especially when using aftermarket exhausts. Installing our Block Off plates removes the popping and reduces exhaust temperatures. With the installation of Black Path Block Off Plates, you will be able to reduce unnecessary weight on your bike, remove engine clutter, and have a more accurate Air/Fuel ratio for tuning your bike, allowing for more power and smoother throttle delivery throughout the rev range. BlackPath's units are CNC machined from billet aluminum at precision tolerances for a perfect fit. Safety is our primary concern, we personally test and use all our products on our own vehicles and we guarantee that they will NEVER fail.