FMF Q4 Hex Slip-On Muffler (Aluminum/Stainless Steel) 044442 - Yamaha YZ450F / WR450F / YZ450FX 2018-2026

Product Description

Upgrade your off-road machine with the FMF Q4 Hex Slip-On Muffler, engineered to deliver power gains throughout the entire RPM range while keeping sound output strictly controlled. Less sound equals more ground.

Designed with intricate chambers, internal baffles, and proprietary multistage packing material, this rugged muffler provides exceptional sound dampening and long-lasting durability for demanding riders.

Top Features: FMF Q4 Hex

• The Q4 employs intricate chambers, baffles and proprietary multistage packing material for optimal sound control.
• Power gains throughout the entire rpm range without excessive noise.
• Includes a standard spark arrestor for full trail and off-road compliance.
• Pounds lighter than stock equipment, enhancing your machine's overall power-to-weight ratio.
• Rugged design built specifically for off-road endurance and proudly made in the U.S.A.

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 include a spark arrestor?
A: Yes, it comes standard with a built-in spark arrestor for trail and forest legal compliance.

Q: How does the Q4 reduce sound without losing power?
A: It uses intricate internal chambers, baffles, and proprietary multistage packing material to maximize exhaust flow while lowering decibel levels.

Expert Pro-Tip

Expert Pro-Tip: Always inspect your exhaust packing regularly and service your silencer with high-grade replacement packing to maintain peak sound absorption and throttle response.

Recommended Pairings:

• Yamaha 4-Stroke Performance Parts
• Yamaha YZ450F 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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