What kind of performance changes can I expect with the FMF Gnarly Pipe?

The FMF Gnarly Pipe is designed to give your bike a tractor-like pull from the bottom end and a thicker midrange. This means you'll feel more torque and power at lower RPMs, making it easier to get going or climb obstacles, and you'll have more usable power through the middle of the powerband.

What is the pipe made of and how durable is it?

This pipe is constructed from rugged 18-gauge steel. This thicker gauge material is well-built to withstand the rigors of off-road riding, offering good durability for trail use.

Does this pipe come with everything needed for installation?

Yes, the FMF Racing Gnarly Pipe includes the necessary O-rings for installation. You will want to refer to the manufacturer's instructions for the complete installation procedure.

FMF Racing 2-Stroke Pipe 025218

Name: FMF Racing Gas Gas 250/300 2018-19/RIEJU MR PRO 250-300 2020-23 Gnarly Pipe
Brand: FMF Racing
SKU: fmf-racing-fmf-racing-gas-gas-250-300-2018-19-rieju-mr-pro-250-300-2020-23-gnarl-t14-677284
Price: 363.25 USD
Availability: BackOrder

FMF Racing Gas Gas 250/300 2018-19/RIEJU MR PRO 250-300 2020-23 Gnarly Pipe

$363.25

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 Gnarly Pipe for Gas Gas 250/300 2018-19/RIEJU MR PRO 250-300 2020-23. Adds tractor-like bottom end pull.

Key Features

Fits Gas Gas 250/300 2018-2019 and Rieju MR Pro 250-300 2020-2023.
Provides tractor-like bottom end pull for improved low-RPM performance.
Adds thicker midrange power for better acceleration and response.
Constructed from rugged 18-gauge steel for durability.
O-rings are included for installation.

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Product Details

If you're looking to get more usable power out of your Gas Gas 250/300 (2018-2019) or Rieju MR Pro 250-300 (2020-2023) dirt bike, this FMF Racing Gnarly Pipe is a solid option. It's built to give you that strong, tractor-like pull right from the bottom of the RPM range, making it easier to get over obstacles or out of tight corners. This pipe is designed to add noticeable grunt to your midrange, giving you more power where you need it most during aggressive riding.

The Gnarly Pipe is constructed from rugged 18-gauge steel, which means it's well-built to handle the demands of off-road riding. This thicker material helps with durability and contributes to the pipe's ability to produce that signature low-end torque. You'll feel an improved response when you crack the throttle, especially at lower engine speeds, making your bike feel more potent and easier to manage in challenging terrain.

This pipe comes with the necessary O-rings for installation, simplifying the process. When you're looking to boost your bike's low-end and midrange performance for trail riding or competitive use, this FMF Racing pipe is a popular choice for good reason.