What materials is this muffler made from?

The muffler body is constructed from blue anodized titanium, and it features a carbon fiber end cap. The internal components also utilize aerospace-grade materials.

What is the Resonance Chamber Technology (RCT)?

RCT is FMF's proprietary technology that uses internal and external chambers to tune the exhaust's sound and power delivery. It helps achieve significant power gains across the RPM range.

Does this muffler come with all necessary mounting hardware?

This product listing is for the FMF Racing Factory 4.1 RCT SO Muffler itself. It is recommended to consult the manufacturer's installation instructions or contact FMF Racing directly to confirm if all necessary mounting hardware is included for installation on your Yamaha WR250F.

Specifications

Brand: FMF Racing
Part #: 044473

FMF Racing Yamaha WR250F 20-21 SS Aluminum Factory 4.1 RCT SO Muffler w/ R. Carbon Cap

Name: FMF Racing Yamaha WR250F 20-21 SS Aluminum Factory 4.1 RCT SO Muffler w/ R. Carbon Cap
Brand: FMF Racing
SKU: fmf-racing-fmf-racing-yamaha-wr250f-20-21-ss-aluminum-factory-4-1-rct-so-muffler-t14-686753
Price: 660.47 USD
Availability: BackOrder

$660.47

On Backorder

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

FMF Racing Yamaha WR250F 20-21 SS Aluminum Factory 4.1 RCT SO Muffler w/ R. Carbon Cap. Massive power gains throughout the RPM range.

Key Features

Fits Yamaha WR250F 2020-2021.
Features FMF's Resonance Chamber Technology (RCT) for improved power and sound.
Blue anodized titanium muffler body.
Includes a carbon fiber end cap.
Designed for massive power gains throughout the entire RPM range.
Shorter overall length resists crash damage and centralizes mass.

This muffler is designed for the Yamaha WR250F model years 2020 and 2021. Please verify fitment for your specific vehicle.

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About this part

Product Details

This FMF Racing Factory 4.1 RCT muffler is built for your Yamaha WR250F from model years 2020-2021. You get the muffler itself, featuring a blue anodized titanium body and a carbon fiber end cap. This system is designed to improve your bike's performance across the entire RPM range.

FMF has incorporated their latest Resonance Chamber Technology, both inside and out, to help tune the exhaust note and power delivery. They've also made the muffler shorter, which not only helps it resist damage from impacts but also allows for better mass centralization by moving the muffler closer to the engine. This can lead to improved handling characteristics. The entire muffler is constructed from aerospace-grade materials, meeting FMF's strict standards, and is made entirely at their Southern California factory.

The Rapid Tuning System (RTS) is also part of this package, giving you a way to adjust the exhaust's performance. This muffler is a well-built component aimed at riders looking for a noticeable increase in power and a refined exhaust note for their WR250F.