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KTM FMF FACTORY EXPANSION CHAMBER 2019-20SX250 XC300/250 EXC 2020 250/300


Product Code: 55505907001
Fits Models: 2019-2020 SX250 XC300/250 2020 EXC TPI 250/300
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FMF factory expansion chamber

Made of high quality, extra strong and durable steel
Untreated surface for an unadulterated factory look
Broader, smoother powerband
Higher speed
More traction, better throttle control
Complete with o-rings
Combination with FMF silencer recommended

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Free UK Standard Delivery On All Orders Over £50

UK Standard Delivery £3.99

We aim to have your order despatched and delivered to you within 24-72 hours. In the rare event an item is out of stock or we need to extend the delivery times we will contact you by phone at the earliest opportunity.

All prices include 20% VAT.

Helmets and kids wear are VAT free.

Sorry but we do not ship internationally at this time.


Returned items are accepted for refund or exchange, providing:

  • Return carriage is paid
  • A copy of the original receipt is included for all returned items
  • Items reach us in unused and re-saleable condition.

We cannot be responsible for returns that are undelivered to us, please keep a copy of your shipping details.

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