Q4 HEX S/A 041578 HONDA-CRF450RX-2025 With its lightweight extruded aluminum

With its lightweight extruded aluminum oval canister mated to a perforated core

·Need to replace your header flange hardware

-Lighter than stock

-Available in Natural Aluminum with Carbon Fiber End Cap

Q4 HEX S/A 041578 HONDA-CRF450RX-2025 With its lightweight extruded aluminumFMF is the leader in high performance quiet technology and our Q4 HEX is the next evolution in off road exhaust. The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available. With the Q4 you dont need to hear the power, just feel the power! Less sound equals more ground Meets USFS and FIM World Enduro sound regulations Power gains throughout the entire rpm range Spark