FMF Racing Powercore 4 Hex Muffler — Fits 2019-2023 Kawasaki KX450/F/X

SKU: FMF042367
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Sale price$399.99
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About FMF Racing

FMF Racing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full FMF Racing lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Race-Proven Performance for Your KX450

The FMF Racing Powercore 4 Hex Muffler is engineered for riders who demand consistent, reliable power from their Kawasaki KX450, KX450F, and KX450X. Utilizing FMF's signature Hex geometry, this muffler increases internal volume for better sound damping and improved power delivery without sacrificing durability.

Why Choose the Powercore 4 Hex?

  • Hex Geometry: Increases internal volume for a deeper sound and enhanced flow.
  • Performance Gains: Optimized for better torque and mid-range acceleration.
  • Race-Ready Durability: Constructed from high-quality materials to survive the toughest motocross conditions.
  • Weight Reduction: Significantly lighter than the bulky stock muffler.
  • Precision Fitment: Designed specifically for 2019-2023 Kawasaki 450 models.

The Powercore 4 Hex is designed to handle the high-stress environment of professional motocross and off-road racing. By improving the exhaust scavenging process, this muffler allows your engine to reach its full potential, providing a crisper throttle response that helps you clear jumps and power out of corners with ease. The sleek design not only looks great but also integrates perfectly with your bike's existing geometry. Experience the difference that premium engineering makes on the track. Find your next performance upgrade at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2019-2021 Kawasaki KX450 Base
2019-2021 Kawasaki KX450F Base

Product Details

Product Description
Part Numbers
Sizing & Fit

About FMF Racing

FMF Racing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full FMF Racing lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Race-Proven Performance for Your KX450

The FMF Racing Powercore 4 Hex Muffler is engineered for riders who demand consistent, reliable power from their Kawasaki KX450, KX450F, and KX450X. Utilizing FMF's signature Hex geometry, this muffler increases internal volume for better sound damping and improved power delivery without sacrificing durability.

Why Choose the Powercore 4 Hex?

  • Hex Geometry: Increases internal volume for a deeper sound and enhanced flow.
  • Performance Gains: Optimized for better torque and mid-range acceleration.
  • Race-Ready Durability: Constructed from high-quality materials to survive the toughest motocross conditions.
  • Weight Reduction: Significantly lighter than the bulky stock muffler.
  • Precision Fitment: Designed specifically for 2019-2023 Kawasaki 450 models.

The Powercore 4 Hex is designed to handle the high-stress environment of professional motocross and off-road racing. By improving the exhaust scavenging process, this muffler allows your engine to reach its full potential, providing a crisper throttle response that helps you clear jumps and power out of corners with ease. The sleek design not only looks great but also integrates perfectly with your bike's existing geometry. Experience the difference that premium engineering makes on the track. Find your next performance upgrade at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2019-2021 Kawasaki KX450 Base
2019-2021 Kawasaki KX450F Base

Product Details

Product Description

About FMF Racing

FMF Racing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full FMF Racing lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Race-Proven Performance for Your KX450

The FMF Racing Powercore 4 Hex Muffler is engineered for riders who demand consistent, reliable power from their Kawasaki KX450, KX450F, and KX450X. Utilizing FMF's signature Hex geometry, this muffler increases internal volume for better sound damping and improved power delivery without sacrificing durability.

Why Choose the Powercore 4 Hex?

  • Hex Geometry: Increases internal volume for a deeper sound and enhanced flow.
  • Performance Gains: Optimized for better torque and mid-range acceleration.
  • Race-Ready Durability: Constructed from high-quality materials to survive the toughest motocross conditions.
  • Weight Reduction: Significantly lighter than the bulky stock muffler.
  • Precision Fitment: Designed specifically for 2019-2023 Kawasaki 450 models.

The Powercore 4 Hex is designed to handle the high-stress environment of professional motocross and off-road racing. By improving the exhaust scavenging process, this muffler allows your engine to reach its full potential, providing a crisper throttle response that helps you clear jumps and power out of corners with ease. The sleek design not only looks great but also integrates perfectly with your bike's existing geometry. Experience the difference that premium engineering makes on the track. Find your next performance upgrade at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2019-2021 Kawasaki KX450 Base
2019-2021 Kawasaki KX450F Base

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