Great info and work

Hi Karl, Cheers for all the great info and work, the Busa pulls fantastic ! smooth as silk. Have taken note on all your tips and will keep to them....

Engine feels fantastic

Hi Karl, Just a quick note to say my engine feels fantastic after your rebuild, great power low down and incredibly drivable! First event at Doune...

Thanks for re-building

Karl – My 1299cc Hayabusa – thanks for re-building and increasing its capacity to 1397cc – its fantastic and congratulations on your workshops...

Engine is fantastic

Karl, My engine is fantastic after your rebuild – sounds crisp and pulls well. Thanks again. Cheers, Steve

Such an awsome engine

thanks Karl for building such an awesome engine,first time out. two ftd,s and a new class record at doune last weekend

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EXT-00081 Hayabusa Ross Piston Kit 81mm GEN 2 2008+

  • Model: EXT00081
  • Shipping Weight: 3kgs
  • £530.00

Fits Models 2008+

Specially designed and manufactured for Extreme Engines Limited.

81mm domed high compression piston.

Kit includes

  • set of 4 piston ring kits,
  • 4 pins
  • and 8 clips.(18mm piston pins)

13.5:1 compression ratio

Exchanged bore and re-plated cylinders available if you wish to buy as a big bore kit.

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