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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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Engine is fantastic

Karl, My engine is fantastic after your rebuild – sounds crisp and pulls well. Thanks again. Cheers, Steve
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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...
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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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EXT-630HFI New Hayabusa 630cc High Flow Fuel Injector Kit

  • Model: EXT630HFI
  • Shipping Weight: 1kgs
  • £365.00

High Flow 630cc High-Impedance (12.5). 
These Injectors Flow 60lbs/hr at 43.5 psi (3 bar). 
Engine performance enhanced through the optimized spray pattern. 

These injectors utilize a multi-orifice tip providing 30 degree spray pattern.

Kit contains:

  • 4 modified 630 High Flow Injectors
  • 4 Top fuel rail adapters
  • A set of O-rings
  • 4 EV1 connectors with wire tails

This kit has been designed to fit std Gen 1 (99-07) Hayabusa throttle bodies with no other modification except wire connection.

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