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Product Details
Product Description
Part Numbers
Fitment
FMF Powercore 4 HEX Slip-On Exhaust Kawasaki KX450 / KX450X / KX450SR
When designing the PowerCore 4 HEX Exhaust, FMF took a hard look at their top of the line mufflers to produce race-inspired performance at a more economical price. The end result is a quality muffler that delivers improved torque, increased horsepower and rugged durability all at a price that won't break the bank.
Features:
- Increase in power and torque through entire RPM range
- Durable stainless steel and aluminum construction
- High quality internal packing material for maximum longevity
- Internal shape of the core utilizes Hi-Flo technology
- Enhanced sonic evacuation provides higher flow and increased power
- Removable spark arrestor included
- 100% made in the USA
Note: Image is for reference only.

Product Style | RevZilla Item # | Store Sku | MFR. Product # | Availability |
---|---|---|---|---|
Product Style Stainless Steel/Aluminum/Stainless Steel | RevZilla Item #1644407 | Store Sku | MFR. Product #042367 | AvailabilityIn Stock: Ships within 24 hours |
This Product Fits
- Kawasaki
- KX450 2019, 2020, 2021, 2022, 2023
- KX450F 2019, 2020
- KX450SR 2022, 2023, 2026
- KX450X 2021, 2022, 2023
This item is also available for 125 different vehicles.
View All Models
- Beta
- 350 RR 2020-2025
- 350 RR Race 2025
- 350 RR Race Edition 2021-2025
- 350 RR X-Pro 2025
- 390 RR 2023-2025
- 390 RR Race 2025
- 390 RR Race Edition 2020-2025
- 390 RR X-Pro 2025
- 430 RR 2023-2025
- 430 RR Race 2025
- 430 RR Race Edition 2020-2025
- 430 RR X-Pro 2025
- 480 RR 2023-2025
- 480 RR Race 2025
- 480 RR Race Edition 2020-2025
- 480 RR X-Pro 2025
- Gas Gas
- EX 250F 2021-2023
- EX 350F 2021-2023
- EX 450F 2021-2023
- MC 250F 2021-2023
- MC 350F 2022-2023
- MC 450F 2021-2023
- Husqvarna
- FC250 2016-2018
- FC250 2019-2022
- FC350 2016-2018
- FC350 2019-2022
- FC450 2016-2018
- FC450 2019-2022
- FC450 Rockstar Edition 2018-2021
- FE250 2017-2019
- FE250 2020
- FE250 2014-2016
- FE350 2017-2019
- FE350 2020-2022
- FE350 2014-2016
- FE450 2023
- FE501 2017-2019
- FE501 2020-2022
- FS450 2021-2022
- FX350 2017-2018
- FX350 2019-2022
- FX450 2017-2018
- KTM
- 250 EXC-F 2017-2019
- 250 SX-F 2016-2018
- 250 SX-F 2019-2022
- 250 SX-F 2009-2015
- 250 SX-F Factory Edition 2015-2017
- 250 SX-F Factory Edition 2021
- 250 XC-F 2016-2018
- 250 XC-F 2019-2022
- 250 XC-F 2009-2015
- 250 XCF-W 2009-2016
- 350 EXC-F 2017-2019
- 350 SX-F 2016-2018
- 350 SX-F 2019-2022
- 350 SX-F 2011-2015
- 350 XC-F 2016-2018
- 350 XC-F 2019-2022
- 350 XC-F 2011-2015
- 350 XC-F Kailub Russell 2021
- 350 XCF-W 2020-2022
- 350 XCF-W 2012-2016
- 400 XC-W 2009-2010
- 450 EXC 2009-2011
- 450 EXC-F Six Days 2019
- 450 EXC-R 2008
- 450 SMR 2021-2022
- 450 SMR 2013
- 450 SX-F 2016-2018
- 450 SX-F 2019-2022
- 450 SX-F 2007-2015
- 450 SX-F Factory Edition 2015-2017
- 450 SX-F Factory Edition 2018-2021
- 450 SX-F Factory Edition 2012-2014
- 450 XC-F 2016-2018
- 450 XC-F 2019-2022
- 450 XC-F 2009-2015
- 450 XCF-W 2023
- 450 XCR-W 2008
- 450 XC-W 2009-2016
- 450 XC-W Six Days 2010-2011
- 500 EXC-F 2017-2019
- 500 XCF-W 2020-2022
- 500 XCF-W 2012-2014
- 500 XC-W 2013-2016
- 505 SX-F 2008
- 505 XC-F 2008-2009
- 530 EXC 2009-2011
- 530 EXC-R 2008
- 530 XCR-W 2008
- 530 XC-W 2009-2010
- Kawasaki
- KLX300R 2020-2025
- KX250 2021-2024
- KX250 2019-2020
- KX250 2025-2026
- KX250F 2017-2018
- KX250X 2025-2026
- KX450 2024-2026
- KX450 50th Anniversary Edition 2024
- KX450F 2012-2015
- KX450F 2016-2018
- Triumph
- TF450C 2026
- TF450E 2026
- TF450RC Edition 2025
- Yamaha
- WR250F 2020-2024
- WR250F 2015-2019
- WR450F 2020
- WR450F 2019
- YZ250F 2019-2026
- YZ250F 2014-2018
- YZ250F 70th Anniversary Edition 2026
- YZ250F Monster Energy Race Edition 2022-2023
- YZ250FX 2020-2025
- YZ250FX 2015-2019
- YZ450F 2018-2025
- YZ450F 50th Anniversary Edition 2024
- YZ450F Monster Energy Race Edition 2022-2025
- YZ450FX 2019-2026
Product Description
Part Numbers
Fitment
1 Customer Reviews
5/5
1 Questions & 0 Answers
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Reviews & Questions
1 Customer Reviews
1 Questions & 0 Answers