Awesome engine

Thanks again karl for supplying such an awesome engine . i never imagined we would get the results that we managed this year . 1st in class & no5...

Breath of fresh air

Karl is a breath of fresh air in a market where very few suppliers are willing to listen and help with free, useful, no bullsh*t advice. Karl...

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

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....

Great job!

A big thanks to you Karl who made it possible to send us an engine that fast. We’re very happy that there are people out there like you who are...

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EXT-10028 Suzuki GSXR-1300 Hayabusa Race Big Valve Set + 1mm Exhaust & Inlet

  • Model: EXT10028
  • Shipping Weight: 1kgs
  • £610.00

Suzuki GSXR-1300 Hayabusa Big Valve Set Plus 1mm

Extreme Hayabusa race valves are stronger and cheaper than genuine valves.

Both inlet and exhaust valves are from a one piece forging made from 1.4482 valve steel and plasma nitrided.

These valves are available in standard and oversize please call us for details.

Other make and models are available please call us for more details.


Please call or email us enquiries@extremeengines.com for more details


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