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Another fantastic resul

another fantastic result at prescott, thanks again karl for an awesome engine
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Amazed by the quality

I’ve made a few purchases from Extreme Engines. Each time I’m amazed by the quality of the products an the customer service before and after my...
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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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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...
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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...
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EXT-10009 Suzuki GSXR-1300 Hayabusa H/Duty Valve Spring & Steel Retainer Kit

  • Model: EXT10009
  • Shipping Weight: 2.5kgs
  • £365.00

Suzuki GSXR-1300 Hayabusa Heavy Duty Valve Spring & Retainer Kit

Fits Models 99 Onwards

Set of High Lift Valve Springs with Steel Retainers for use with Extreme High Lift Cams.

Seat pressure 45lb

Add to Cart:
Next Day Delivery available on most parts

All major credit and debit cards accepted through

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