please make sure this item fit your bike before order !These are made to fit all:For Yamaha R1 2003-2012For Yamaha R6 2003-2012For Yamaha FZ1 2003-2008For Kawasaki ZX6RR/636 2003-2008For Kawasaki ZX10R 2003-2012 (please verify shape and size for this model before ordering)For Kawasaki ZX14R 2004-2008You are purchasing high quality 6061 aluminum and anodized parts made to CNC quality. aluminum plates are much stronger and beautiful than STEEL .Used to seal the ports on the valve cover for the AIS (Air Injection System).Eliminate the popping noise from aftermarket exhaust and baffle kits!Most importantly to get an accurate air/fuel mixture reading when tuning the bike.Each piece is inspected and laser etched with logo.For installation, all attached reeds and other AIS/smog system pieces need to be removed completely in order for the plates to install properly. PLEASE DON'T FORGET TO REMOVE THE REED SCREWS