FITS ALL YAMAHA YFZ450R/X MODELS AND YEARS FI MODEL ONLY!

• 98mm BPR cylinder
• CP 14:1 forged piston
• Nitrite coated piston rings
• Chrome wristpin
• Circlips
• Top end gasket kit
• Cometic MLS big bore head gasket
• Maxlock TITANIUM head stud kit – LIFETIME WARRANTY*!
• Heavy duty cam chain
• Online and phone tech support
• Stickers
• No mods required
• Piston requires race gas

This is a bolt on kit with no machining required. Piston uses race gas. Everything is new in the original packaging and the original manufacturer’s warranty applies*
Please check your order thoroughly when you receive it and contact us if you have any issues at all. If you are not 100% happy with what you receive you are welcome to return it for a full refund, not questions asked! Thanks!!

*We recommend that this be installed by a qualified mechanic with experience doing this type of work. Warranty does not cover any failure that is a result of improper installation, improper break in, improper tuning, or misuse. For any warranty to be considered the part(s) in questions must first be sent to us for inspection. We can not warranty anything based on phone calls or photos alone.