Description
FMF Q4 HEX S/A Slip-On Exhaust Honda CRF450R / CRF450RX / CRF450RWE / CRF450R-S
The FMF Q4 HEX has always been in a league of its own and proves you don’t need to settle for a plugged up moto muffler hampered by an insert when you can have a compliant muffler engineered for power and performance.
Features:
- Less sound equals more ground (helps keep our riding areas open)
- Meets USFS and FIM World Enduro sound regulations
- Power gains throughout the entire RPM range
- Spark arrestor included
- Pounds lighter than stock
- Rugged design for off-road endurance
- Only US manufacturer to offer dedicated quiet exhaust systems
- Can be used with stock or FMF Header
- Weight: 5.7 lbs
- 100% Made in the USA
Note: Image is for reference only. Actual slip-on muffler / mid-pipe will vary.









