FEATURED BRAND = COVERKING CHECK OUT COVERKING NOW

Auto Barn
Est. 1957
FMF Racing

FMF Racing WR450F 20 Powercore 4 Hex Muffler

$440.31

On Backorder — Expected to ship by Apr 28, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

FMF Racing WR450F 20 Powercore 4 Hex Muffler. Aluminum construction with stainless steel components for improved performance.

Key Features

  • Fits WR450F 20 models.
  • Aluminum performance muffler construction.
  • Durable stainless steel Hi-Flo end caps and components.
  • Increases horsepower and torque throughout the entire power curve.
  • Removable spark arrestor included.
  • Slip-on design for easy installation.
Secure CheckoutFast Shipping631-982-0042
About this part

Product Details

FMF Racing is well-known for making performance exhaust systems, and this Powercore 4 Hex Muffler is a great example of their work. This slip-on muffler is designed to bolt right onto your WR450F, giving you a noticeable boost in horsepower and torque across the entire range of your engine's power band. That means you get more usable power whether you're trail riding or racing.

What makes this muffler stand out is its construction. It uses a durable aluminum body for a good balance of performance and strength, paired with stainless steel Hi-Flo end caps and other components. This combination is built to last and handle the demands of riding. It’s a completely redesigned unit for late model applications, ensuring it fits right and works well with your bike's existing exhaust system. A removable spark arrestor is also included, which is important for trail riding in many areas.

Specifications

Brand
FMF Racing
Manufacturer Part #
044462

Frequently Asked Questions

FMF Racing WR450F 20 Powercore 4 Hex Muffler

$440.31