Upgrade your ride with the FMF MUFFLER HEX Q4 S/A from Knobtown Cycle, Kansas City’s premier motorcycle parts destination.
Product Description
MUFFLER HEX Q4 S/A
- The Q4 employs intricate chambers, baffles and proprietary multistage packing material
- With the Q4 you don’t need to hear the power, just feel the power!
- Less sound equals more ground
- Power gains throughout the entire rpm range
- Spark arrestor included
- Pounds lighter than stock
- Rugged design for off-road endurance
- Made in the U.S.A.
Part Locations
| Location |
Available |
| Wisconsin (WI) |
9 |
| New York (NY) |
0 |
| Texas (TX) |
0 |
| Nevada (NV) |
5 |
| North Carolina (NC) |
0 |
| National Total |
14 |
Stock levels last updated: January 2, 2026 9:17 AM
Professional Installation Available
Knobtown Cycle offers professional installation services. Contact us via a service request to learn more.
Thank you for Shopping at Knobtown Cycle!
When you shop with us, you’re not just buying motorcycle parts — you’re supporting a small, family-run business rooted right here in the heartland of America. Every order helps us keep riders on the road and fuels our passion for serving the motorcycle community.
From all of us at Knobtown Cycle, thank you for choosing local and riding with us.
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