Cometic High Performance Top End Gasket Kit Ktm 450exc-r 5303xc-r '08 95mm Bore Off Road / Dirt EST Gasket Kits Contain Components Required for a Typical 2 or 4 Stroke Top End Rebuild or Repair Graphite Gaskets Feature a Steel Core, Laminated on Both Sides with Flexible Graphite Fiber Gaskets Designed for Maximum Seal, Flexibility and Torque Retention O-Ring Gaskets Meet or Exceed OEM Specifications Extreme Sealing Technology (EST) Kits Come With All Components Necessary for a Top End Rebuild