Outlaw Racing Billet Engine Plugs Blue Yamaha YZ450F 98 - 05 1998 - 2005 1 new Blue Outlaw Racing Billet Engine Plugs For Yamaha YZ450F 98-05 Outlaw Racing CNC Machined Billet Engine Plugs Made from aircraft grade aluminum Available in black, blue, green and red, see other listing for color options