NOCE exhaust system for KLX 300 series. Our product is made from high-quality stainless steel pipe header and muffler. Giving you best experience when you install on bike, increase sound powerfull and looks gorgeous. Pipe comes with O2 bung sensor depend on carbu or inject. Great Muffler with glaswall inside made from stainless. Decible killer + spark arrestor. Pleace give information years of bike when place an order to make sure the exhaust is compitable.