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Testimonials

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....
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Purchased the car in 2007

Hi Karl I purchased the car in 2007 and was informed the engine was rebuilt in 2006 by yourself, I have used the car in hills & sprints to this...
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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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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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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...
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EXT-M4004B CP Piston Kit 84mm M4004B

  • Model: EXTCPK4004B
  • Shipping Weight: 3.5kgs
  • £915.00

Piston Kit only M4004B

99-07 Suzuki Hayabusa 12.5:1

84mm Bore

+3mm oversize (1396cc)

7-10 days delivery.

Add to Cart:
Next Day Delivery available on most parts

All major credit and debit cards accepted through

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