FMF Factory 4.1 RCT Slip-On Muffler (Aluminum/Carbon Fiber) 042394 - Kawasaki KX250 / KX250X 2021-2024

FMF Factory 4.1 RCT Slip-On Muffler (Aluminum/Carbon Fiber) 042394 - Kawasaki KX250 / KX250X 2021-2024

Product Description

The FMF Factory 4.1 RCT slip-on muffler delivers championship-proven performance and advanced exhaust technology to your Kawasaki KX250 or KX250X. Utilizing Resonance Chamber Technology, this system features a patented core shape that reduces decibel levels while preserving maximum engine power output.

Engineered with Factory Forward Engineering to centralize mass and improve crash resilience, the muffler combines a lightweight aluminum canister with a durable carbon fiber end cap. Internal chamber ducts expand internal volume to optimize gas flow, resulting in measurable power gains across the entire powerband.

Top Features: FMF Factory 4.1 RCT

• RCT (Resonance Chamber Technology) patented core shape lowers decibels while maintaining peak power.
• Internal chamber ducts increase volume to optimize exhaust flow and boost power throughout the RPM range.
• Factory Forward Engineering centralizes mass and provides greater crash resilience.
• Innovative rear end cap allows quick installation of tuning inserts or the included spark arrestor.
• Includes a pre-installed QuietCore 94 dB insert and spark arrestor for versatility on the track or trail.

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

Fitment List

Frequently Asked Questions

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

Q: Does this slip-on require a special header, or will it fit my stock setup?
A: This muffler is fully compatible with either your stock header or an aftermarket FMF header.

Expert Pro-Tip: When servicing your slip-on muffler, inspect the packing material regularly and repack it according to manufacturer intervals to maintain optimal decibel levels and preserve peak exhaust scavenging efficiency.

Recommended Pairings:

• Kawasaki 4-Stroke Performance Parts
• Kawasaki KX250F Performance Upgrades
• Motorcycle Tools & Accessories

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 bikes. We pride ourselves on great customer service, and every item ships FAST - straight to your door.

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