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Ships within 48 hours · Estimated delivery Aug 3 - Aug 8
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Description
FMF 4.1 RCT Exhaust with MegaBomb - Aluminum KTM450 SX-F 2019-2021 /Husqvarna/Gas Gas 045638 1820-1875The Factory 4. 1 RCT incorporates FMF Resonance Chamber Technology both internally and externally Shorter overall length that is less susceptible to crash damage and complementary to FMF's Factory Forward Engineering moving the muffler closer to the motor to centralize mass The Factory 4. 1 RCT is constructed from only aerospace grade materials that meet FMF's exacting specifications and is manufactured 100% at their Southern California factory
- The Factory 4.1 RCT incorporates FMF Resonance Chamber Technology both internally and externally
- Shorter overall length that is less susceptible to crash damage and complementary to FMF's Factory Forward Engineering - moving the muffler closer to the motor to centralize mass
- The Factory 4.1 RCT is constructed from only aerospace grade materials that meet FMF's exacting specifications and is manufactured 100% at their Southern California factory
- Massive Power gains throughout the RPM range.
- Huge weight savings
- New RTS (Rapid Tuning System)
- Includes MegaBomb header
- Includes spark arrestor screen insert
| 2021-2022 | Gas Gas | MC 450F | - | - |
| 2021-2022 | Gas Gas | EX 450F | - | - |
| 2019-2021 | KTM | 450 SX-F | - | - |
| 2019-2021 | KTM | 450 XC-F | - | - |
| 2019-2021 | Husqvarna | FX 450 | - | - |
| 2018-2021 | Husqvarna | FC 450 | - | - |
| 2018-2020 | KTM | 450 SX-F FE | - | - |
Fitment Disclosure
This quick reference fitment information is provided to direct you to our catalog information and the manufacturer's information. Consult manufacturer publication(s) and/or website(s) for specific fitment and application information and other important information. This fitment information is based upon the stock version of the motorcycle or unit referenced and any accessory added or other modification could invalidate the quick reference information provided.Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 5
It’s a perfect shoe without the correct width it needed to be wider
Size: 5 Big Kid, Color: Lavendar
The app suggested a 6.5 but I needed it in wide and it was not an option.
I had to send them back because they were too tight!
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Reviewed in the United States on April 11, 2026
★★★★★ 5
That the shoes got here in time.
Size: 10.5 Little Kid, Color: Light Pink
The shoes a perfect.
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Reviewed in the United States on April 20, 2026
★★★★★ 5
Great shoes
Size: 2 Little Kid, Color: Light Pink
Love love love
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Reviewed in the United States on April 8, 2026
★★★★★ 4
Snug fit
Size: 11 Little Kid, Color: Lavendar
Needed to size up from all other Skechers we have bought. But still very good quality
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Very comfortable
Size: 2 Little Kid, Color: Light Pink
My daughter really really loves these. She said that they are the most comfortable shoes she has ever had.
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Reviewed in the United States on May 20, 2026