FMF Factory 4.1 RCT Slip-On Muffler (Blue Anodized Titanium / Carbon Fiber) 045690 - Beta 450 RC / 450 RX 2024-2026

FMF Factory 4.1 RCT Slip-On Muffler (Blue Anodized Titanium / Carbon Fiber) 045690 - Beta 450 RC / 450 RX 2024-2026

Product Description

Maximize your machine's potential with the FMF Factory 4.1 RCT Slip-On Muffler, designed to deliver race-ready performance and exceptional durability. Featuring state-of-the-art resonance technology, this exhaust system provides enhanced power throughout the entire powerband while meeting strict sound standards.

Engineered with FMF's Factory Forward Engineering to centralize mass, the system is less prone to crash damage while optimizing exhaust flow. Built in the USA with high-grade blue anodized titanium and a carbon fiber end cap, it combines striking aesthetics with functional track performance.

Top Features: FMF Factory 4.1 RCT Slip-On 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 and power gains across the entire rev range.
• Factory Forward Engineering centralizes mass and reduces vulnerability to crash damage.
• Innovative rear end cap allows quick installation of tuning tip inserts or spark arrestor with four simple screws.
• Meets AMA and FIM sound requirements with QuietCore 94 dB insert and spark arrestor included.

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 come with a spark arrestor and sound insert?
A: Yes, it includes both a spark arrestor and a QuietCore 94 dB insert, and meets AMA and FIM sound requirements.

Q: Can I use this muffler with my stock header?
A: Yes, it is fully compatible with either the stock header or an aftermarket FMF header.

Expert Pro-Tip

Expert Pro-Tip: When servicing your slip-on muffler, always inspect the mid-pipe connection gasket and apply a thin layer of high-temp silicone sealant if necessary to prevent exhaust leaks. Ensure all mounting bolts are left loose until the entire system is aligned properly to avoid binding stress on the carbon fiber end cap.

Recommended Pairings:

• Beta 4-Stroke Performance Parts
• Beta Performance Upgrades & Accessories
• 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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