Namura PISTON KIT NA-40012-B fits 2008-2013 Yamaha Grizzly 700 YFM700FG 4X4 Fi / 2007 Grizzly 700 YFM700FGP 4X4 Fi, RAPTOR 700 YFM700RYR Gytr Edition / 2007-2013 Grizzly 700 YFM700FGP 4X4 Fi EPS

MOS2 (Teflon/Molybdenum) Coated Skirts - A rolled on application process provides a bond that is 10 times stronger than other spray on coatings. Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizuresMachined Smooth Heads - Reflects combustion heat and reduces carbon buildup, protecting the top of the piston. Some tests have shown this feature can increase horsepower and fuel economy by up to 6%Anodized Domes - Increases heat resistance and durability; pistons with anodized domes are 75% stronger than non-anodized pistonsHypereutectic Casting Process - Provides higher silicon content for reduced expansion rates and additional wear resistance; it also has an ability to withstand higher cylinder temperatures