FMF Racing Powercore 4 Hex Muffler — Fits 2018-2024 Yamaha YZ450F WR450F YZ450FX

SKU: FMF044441
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About FMF Racing FMF Racing engineers high-quality automotive parts and ...Read More

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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

Unleash Your Yamaha's Potential with FMF Powercore 4

The FMF Powercore 4 Hex Muffler is engineered for riders who demand increased power and durability. Designed specifically for the Yamaha YZ450F, WR450F, and YZ450FX platforms, this muffler utilizes FMF's signature Hex geometry to maximize internal volume and optimize exhaust flow. This results in a noticeable boost in torque and horsepower across the entire RPM range, making it the perfect upgrade for both track and trail enthusiasts.

Key Features and Benefits

  • Hex Geometry: Increases internal volume for better sound damping and performance.
  • Rugged Construction: Built to withstand the rigors of off-road racing.
  • Enhanced Power: Significant gains in low-to-mid range torque.
  • Easy Installation: Direct bolt-on fitment for specified Yamaha models.
  • Lightweight Design: Reduces overall weight compared to stock exhaust systems.

Whether you are navigating tight technical trails or pinning it on the motocross track, the Powercore 4 provides the reliable performance you need. Its robust design ensures it can handle high-heat environments while maintaining peak efficiency. Upgrade your bike's exhaust system with premium components from GGCRACING today.

Vehicle Fitment

Years Make Model Trim
2019 Yamaha WR450F Base
2018-2021 Yamaha YZ450F Base
2019-2021 Yamaha YZ450FX 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

Unleash Your Yamaha's Potential with FMF Powercore 4

The FMF Powercore 4 Hex Muffler is engineered for riders who demand increased power and durability. Designed specifically for the Yamaha YZ450F, WR450F, and YZ450FX platforms, this muffler utilizes FMF's signature Hex geometry to maximize internal volume and optimize exhaust flow. This results in a noticeable boost in torque and horsepower across the entire RPM range, making it the perfect upgrade for both track and trail enthusiasts.

Key Features and Benefits

  • Hex Geometry: Increases internal volume for better sound damping and performance.
  • Rugged Construction: Built to withstand the rigors of off-road racing.
  • Enhanced Power: Significant gains in low-to-mid range torque.
  • Easy Installation: Direct bolt-on fitment for specified Yamaha models.
  • Lightweight Design: Reduces overall weight compared to stock exhaust systems.

Whether you are navigating tight technical trails or pinning it on the motocross track, the Powercore 4 provides the reliable performance you need. Its robust design ensures it can handle high-heat environments while maintaining peak efficiency. Upgrade your bike's exhaust system with premium components from GGCRACING today.

Vehicle Fitment

Years Make Model Trim
2019 Yamaha WR450F Base
2018-2021 Yamaha YZ450F Base
2019-2021 Yamaha YZ450FX 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

Unleash Your Yamaha's Potential with FMF Powercore 4

The FMF Powercore 4 Hex Muffler is engineered for riders who demand increased power and durability. Designed specifically for the Yamaha YZ450F, WR450F, and YZ450FX platforms, this muffler utilizes FMF's signature Hex geometry to maximize internal volume and optimize exhaust flow. This results in a noticeable boost in torque and horsepower across the entire RPM range, making it the perfect upgrade for both track and trail enthusiasts.

Key Features and Benefits

  • Hex Geometry: Increases internal volume for better sound damping and performance.
  • Rugged Construction: Built to withstand the rigors of off-road racing.
  • Enhanced Power: Significant gains in low-to-mid range torque.
  • Easy Installation: Direct bolt-on fitment for specified Yamaha models.
  • Lightweight Design: Reduces overall weight compared to stock exhaust systems.

Whether you are navigating tight technical trails or pinning it on the motocross track, the Powercore 4 provides the reliable performance you need. Its robust design ensures it can handle high-heat environments while maintaining peak efficiency. Upgrade your bike's exhaust system with premium components from GGCRACING today.

Vehicle Fitment

Years Make Model Trim
2019 Yamaha WR450F Base
2018-2021 Yamaha YZ450F Base
2019-2021 Yamaha YZ450FX Base

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