YFZ450R YFZ 450R 450X 14:1 Hi Comp Big Bore 98mm Piston Race Gas Top End Kit

YFZ450R YFZ 450R 450X 14:1 Hi Comp Big Bore 98mm Piston Race Gas Top End Kit

Regular price$600.00
Shipping calculated at checkout.

  • 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*

*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.


We ship next day most of the time. Modquad parts are shipped Monday-Thursday. Engine Kits are 3-5 business days.

We don't do backorder! If your items has already sold you will be notified immediately and you money refunded on the spot.

Sold items are removed daily.

If you see it on this website, it is 100% in stock unless it just sold before you clicked buy.

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