FMF POWER UP KIT FMF has teamed up with Dynojet to produce a kit that offers you a selection of jets and/or needles to get maximum horsepower out of your bike fitted with an FMF exhaust Includes easy to use instructions with diagrams and step-by-step procedures to help you get your jetting where it needs to be, no matter what elevation you ride at. KTM2008 KTM450 ATV Part No. 27-711.FMF 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.