Big Gun 07-09 Yamaha YZ 450F ECO Series Slip On Exhaust

The Big Gun Eco Series slip-on exhaust system is designed for performance, power, and sound without a high price. It's constructed from 0.049" stainless steel tubing and features a 6061 brushed aluminum muffler canister with a black satin steel muffler tip. This is a slip-on system only. It is designed to be quiet at 98dB (with a separately sold Vortex Quiet Insert), track and trail legal, and includes a U.S.F.S.-approved screen-type removable spark arrestor. The slip-fit mid-pipe design allows for subframe movement, preventing exhaust system breakage. It is TIG welded and claims a 3-6 horsepower increase on most models. It comes with a one-year manufacturer's warranty and is made in the U.S.A.