Back to Exhaust: Slip-On

FMF Powercore 4 — HEX Slip-On 4-Stroke — Kawasaki KX450F/KX450X (042367)

Part # 042367
Item #357670
Fits 2 motorcycles
  • Kawasaki
    • KX450F · 2019-2023
    • KX450X · 2019-2023
Regular price$404.99
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WARNING: Cancer and Reproductive Harm, www.P65Warnings.ca.gov
FMF PowerCore 4 HEX Slip-On — Kawasaki KX450F (2019-2023), Kawasaki KX450X (2019-2023), 4-Stroke
Product Details

When designing the PowerCore 4 HEX, we looked at our top of the line products to deliver race-inspired performance at an economical price. The end result is a quality muffler with improved torque, increased horsepower and rugged durability all at a price that won't break the bank.

  • 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.

Slip-on. Replaces the stock muffler and bolts to the stock header or an FMF MegaBomb/PowerBomb header, sold separately. Header not included.

This is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.

Fitment

  • Kawasaki KX450F 2019–2023
  • Kawasaki KX450X 2019–2023

Specifications

System TypeSilencer
MaterialStainless steel and aluminum
TechnologyHi-Flo Technology
Spark ArrestorRemovable (included)
Street LegalityClosed-course / competition use only (CARB-restricted)
Best ForRace-only / Closed-course, Off-road / Trail

Verified from Garamoto’s catalog & fitment data.