KTM 400 XCW 2009-2010 450 EXC 2009-2011 450 EXCR 2008 450 XCRW 2008450 XCW 2009-2010Part No. 06-714.FMF.SPB FMF 045196 - Boosts horsepower by as much as 10% - Patented technology (Patent #7510050) - A perfect fit with any FMF muffler - Quality construction for maximum durability- Reduces sound output by as much as 1.5 dB - Choose from stainless steel or titanium Majority of our listings are for a direct replacement for your original part. Our parts are made of quality and are designed to meet or exceed the original OEM Standards. Our products are often a cost effective alternative to genuine OEM Parts. Please note: the models of bike we state in our listings are for general guidance only. Please make sure this item will fit your bike before purchasing. Also, we cannot guarantee fitment to any non-UK models.