FMF Powercore 4 Hex Muffler - KTM 450 SX-F and More
- Ships next business day
- 30-day hassle-free returns
- Call us: 541-668-7503
- Secure checkout — Pay in 4 available
✓ Fits
- Pick the option that matches your 450 SX-F year, shown in each option name
- KTM 450 SX-F 2007-2022
- KTM 450 SX-F 2012-2015
- Husqvarna FC 250 2016-2022
- Husqvarna FC 350 2016-2022
- Husqvarna FC 450 2016-2022
- Husqvarna FE 250 2014-2019
- Husqvarna FE 350 2014-2019
- Husqvarna FE 450 2017-2019
- Husqvarna FE 501 2017-2019
- Husqvarna FX 350 2017-2022
- Husqvarna FX 450 2017-2022
- KTM 250 EXC-F 2017-2019
- KTM 250 SX-F 2005-2018
- KTM 250 SX-F Factory Edition 2015
- KTM 250 XC-F 2007-2015
- Plus more models. Message us with your machine and we will confirm fitment
✓ Features
- Overall increase in power and torque
- Durable stainless steel and aluminum construction
- Space Age internal packing material for maximum longevity
- Internal shape of core uses Hi-Flo technology
- Enhanced sonic evacuation provides for higher flow and increased power
- Includes removable spark arrestor
- Can be used with FMF or Stock OEM Header
✓ What's Included
- (1) FMF Powercore 4 Hex Muffler in the option you select
✓ Specs
- Brand: FMF
- Manufacturer part #: Powercore Slip-On (045589): 045589, Powercore Muffler (045553): 045553, P-Core Mflr KTM/Husqvarna (045626): 045626
- Condition: New
- Closed course competition use only. Not legal for street use or on pollution controlled vehicles in California
Ships fast from DuneGoonShop!
📦 Shipping Information
In-stock items ship next business day. ModQuad parts dispatch Monday through Thursday.
Made-to-order and custom powder coat items show their lead time at the top of this page, right next to the truck icon. These are built fresh for you, so timing varies by brand and current backlog.
Need something by a specific date? Call us at 541-668-7503 before ordering and we will check stock and ETA on that exact part. We can often point you to an in-stock alternative from another distributor.
Questions? Contact us, we respond within 24 hours.