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Yamaha GYTR High Compression Piston Kit
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Yamaha GYTR High Compression Piston Kit

Our price: $161.99$175.99

MSRP: $199.95 - $219.95 - You save up to $43.96 (20% off)

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  • Increases engine compression ratio on YFZ450 to 13.0:1 (stock '06~'09 is 11.2:1), on YFZ450R/X to 13.2:1 (stock is 11.4:1).
  • Offers 1.5 to 3 hp increase throughout most of the power band.
  • No crank rebalancing necessary.
  • Piston is forged aluminum with machined valve pockets for addtional valve clearance when higher lift camshafts are used.
  • Includes piston rings, piston pin, and clips (uses stock replacements).
  • Requires use of minimum 100-octane racing fuel.

Yamaha GYTR High Compression Piston Kit Reviews

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0 of 0 people found this review helpful.

piston is not made by yamaha its a JE piston

Comments On Sep 19, 2013:even though its not made by yamaha its still a trusted name JE piston no issues

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0 of 0 people found this review helpful.

nothing better than gytr products!

Comments On May 28, 2013:I decided to heavily modify my yz250f motor and this piston was a great choice. you'll need to use race fuel,100 octane min, but if your looking for more power in this motor get an exhaust then upgrade the piston. if you still want more then get some stage 2 cams and a valve spring kit! it'll be one head rippin 250f!

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Instructional

How to check piston ring end gap

How to rebuild the top end on a motorcycle or atv (Part 1)

How to rebuild the top end on a motorcycle or atv (Part 2)

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