FMF Factory 4.1 RCT Slip-On Muffler (Aluminum / Stainless Steel) 042330 - Kawasaki KX450F 2016-2017

Product Description

Max out your dirt bike's power output with the FMF Factory 4.1 RCT Slip-On Muffler. Engineered with patented Resonance Chamber Technology, this premium exhaust component delivers massive power gains throughout the entire rpm range while keeping decibel levels strictly in check.

Featuring FMF's Factory Forward Engineering, this muffler centralizes mass to make it significantly less prone to crash damage during aggressive motocross and off-road riding. Built from durable stainless steel and high-grade aluminum with a carbon fiber end cap, it meets AMA and FIM sound requirements right out of the box.

Top Features: FMF Factory 4.1 RCT Muffler

• RCT (Resonance Chamber Technology) uses a patented core shape to lower decibels while maintaining maximum power output.
• Internal chamber ducts increase internal volume for improved exhaust flow and power gains across the entire powerband.
• Factory Forward Engineering centralizes mass to improve handling and reduce crash vulnerability.
• Innovative rear end cap design allows quick, simple installation of tuning tip inserts or the included spark arrestor.
• Includes a QuietCore 94 dB insert and spark arrestor, meeting AMA and FIM sound requirements.

Please review the detailed compatibility data below to ensure an exact fitment match for your dirt bike before finalizing your purchase.

Fitment List

Frequently Asked Questions

Q: Does this muffler come with a spark arrestor?
A: Yes, a spark arrestor is included in the muffler along with a QuietCore 94 dB insert.

Q: What materials are used in this slip-on system?
A: It features a stainless steel pipe, aluminum muffler body, and a carbon fiber end cap.

Expert Pro-Tip: When installing a new slip-on muffler on your dirt bike, apply a thin bead of high-temp silicone sealant at the slip-joint connection between the mid-pipe and header to prevent exhaust leaks and maintain optimal backpressure.

Recommended Pairings:

• Kawasaki 4-Stroke Performance Parts & Accessories
• Kawasaki KX450F Performance Upgrades & Engine Mods
• Silencer Parts & Accessories

About Moto-House MX

At Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their machines. We pride ourselves on great customer service, and every item ships FAST - straight to your door.

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