FMF Factory 4.1 RCT Slip-On Muffler (Blue Titanium / Carbon End Cap) 042412 - Kawasaki KX250 / KX250X 2025-2026

Product Description

Maximize your bike's potential with the FMF Factory 4.1 RCT Slip-On Muffler 042412, designed specifically for the Kawasaki KX250 and KX250X. Experience enhanced power delivery and professional-grade styling on every ride.

Engineered with Resonance Chamber Technology and Factory Forward Engineering, this muffler centralizes mass while maximizing exhaust flow and maintaining strict sound requirements.

Top Features: FMF Factory 4.1 RCT Muffler

• RCT (Resonance Chamber Technology) features a patented core shape that lowers decibels while maintaining maximum power output.
• Internal ducts increase internal volume for improved exhaust flow, resulting in power gains throughout the entire powerband.
• Factory Forward Engineering centralizes mass and reduces vulnerability to crash damage.
• Innovative rear end cap allows simple installation of tuning tip inserts or spark arrestor with the removal of four screws.
• Includes QuietCore 94 dB insert and integrated spark arrestor, meeting AMA and FIM sound requirements.

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: Does this slip-on muffler work with the stock header?
A: Yes, it is fully compatible with either the stock header or an aftermarket FMF header.

Q: Are the spark arrestor and QuietCore insert included?
A: Yes, both the QuietCore 94 dB insert and the spark arrestor come included with the muffler.

Expert Pro-Tip: When installing a slip-on exhaust, apply a thin layer of high-temp silicone sealant at the mid-pipe slip joint to prevent exhaust leaks and ensure optimal backpressure.

Recommended Pairings:

• Kawasaki KX250F Performance Parts
• Kawasaki 4-Stroke Performance Parts
• Motorcycle Tools & 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 bikes. We pride ourselves on great customer service, and every item ships FAST - straight to your door.

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