FMF Racing Pipe Springs & O-Rings Kit for Yamaha YZ250 99-24/YZ250X 18-23 It may be necessary to

It may be necessary to re-jet the carburetor or recalibrate the fuel injection system for best performance when a change is made in the exhaust system

removable/washable air channeled comfort liner

• An easy upgrade when changing tappets or cams

this is not only a major transmission upgrade

* Works with sissybar/backrest

FMF Racing Pipe Springs & O-Rings Kit for Yamaha YZ250 99-24/YZ250X 18-23 It may be necessary toFMF Pipe Spring & O Ring Kit Yamaha YZ250 X Features: High quality FMF Racing replacement exhaust springs and O Rings Helps restore your two strokes exhaust system to its full potential Offers improved flange seal