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KTM 45305307000 - FMF Fatty Expansion Chamber
MPN: 45305307000
$289.99
Shipping & DeliveryShips from TX, United States.
Ships from TX, United States.
Return PolicyWant extra peace of mind? Even if a seller doesn't offer returns,
MX Locker gives you the option to make any item returnable with Return Assurance at checkout.
Want extra peace of mind? Even if a seller doesn't offer returns,
MX Locker gives you the option to make any item returnable with Return Assurance at checkout.
Shop With ConfidenceMX Locker is 100% committed to ensuring that every sale ends in satisfaction—for both buyer and seller. Your payment is held until the item is delivered and approved. If it's not as described, you'll receive a full refund.
Every transaction is backed by our secure payment system. We hold funds until you confirm the item arrived in the promised condition—so you can shop worry-free.
MX Locker is 100% committed to ensuring that every sale ends in satisfaction—for both buyer and seller. Your payment is held until the item is delivered and approved. If it's not as described, you'll receive a full refund.
Every transaction is backed by our secure payment system. We hold funds until you confirm the item arrived in the promised condition—so you can shop worry-free.
Overview
Description
KTM 45305307000 - FMF Fatty Expansion Chamber
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📦
Shipping Policy
Fast Shipping
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🔄
Return Policy
30-Day Returns
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✅
100% Buyer Satisfaction
Checkout with confidence from an official dealer
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This is a genuine KTM FMF Fatty Expansion Chamber designed to optimize your engine performance. As a critical component of the exhaust system, this expansion chamber is constructed from extra strong sheet steel to withstand the rigors of demanding riding environments. It features a nickel-plated surface finish for enhanced durability and corrosion resistance. The design is engineered to provide a wide, even engine speed range, contributing to improved power delivery throughout the RPM band. This part replaces your original header assembly. Please verify fitment for your specific application before purchasing.
Key Features
- Genuine OEM KTM FMF expansion chamber
- Constructed from extra strong sheet steel
- Durable nickel-plated surface finish
- Provides a wide, even engine speed range
Why Choose KTM 45305307000 - FMF Fatty Expansion Chamber?
This genuine OEM FMF expansion chamber is engineered to deliver a wider, more even power band compared to stock components. Its nickel-plated steel construction ensures long-lasting durability in performance applications.
Specifications
| Brand | KTM |
| Part Number | 45305307000 |
| Condition | NEW |
| Notes/Other | This is a direct replacement component for the exhaust system. Ensure all existing mounting hardware is inspected for wear during installation. |
This part fits the following vehicles:
| Make | Year | Model |
|---|---|---|
| KTM | 2023 | 50 SX EU |
| KTM | 2023 | 50 SX FACTORY EDITION |
| KTM | 2023 | 50 SX FACTORY EDITION US |
| KTM | 2022 | 50 SX EU |
| KTM | 2022 | 50 SX FACTORY EDITION |
| KTM | 2022 | 50 SX FACTORY EDITION US |
| KTM | 2021 | 50 SX EU |
| KTM | 2021 | 50 SX FACTORY EDITION |
| KTM | 2021 | 50 SX FACTORY EDITION US |
| KTM | 2020 | 50 SX EU |
| KTM | 2019 | 50 SX EU |
| KTM | 2018 | 50 SX EU |
| KTM | 2017 | 50 SX EU |
| KTM | 2016 | 50 SX EU |
| KTM | 2015 | 50 SX EU |
| KTM | 2014 | 50 SX EU |
| KTM | 2013 | 50 SX EU |
| KTM | 2012 | 50 SX EU |
| KTM | 2011 | 50 SX EU |
Please verify fitment with your specific vehicle before purchasing.
Policies
Shipping Policy
Items ship within 1-2 business days.
Return Policy
Returns accepted within 30 days.
SLM Racing
© 2026 SLM Racing. All Rights Reserved.
Compatible with 3 KTM vehicle(s)Meet The Seller
Responds within 3 hours.
Ships within 3 business days.
Items match their descriptions.
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