The EVO R series draws on Big Gun's rich heritage of making power. Offered for various off road MX and sport ATV models, the EVO R is a tried-and-true series that will save weight, add noticeable performance gains and sound tremendously better than stock.Hard anodized oval shaped aluminum mufflerTIG-welded reinforced muffler brackets304 stainless steel mid pipe / head pipeRed powder-coated stainless steel end tipLighter than stock exhaust systemHuge horsepower and torque gainsSleek muffler design allows for maximum clearanceRemovable screen-type spark arrestor includedHandmade in the USAOne-year manufacturers limited warrantyNote: This system is not ARB/CARB compliant and cannot be sold in California