The FMF Q has always been in a league of its’ own and our latest Q4 Hex is the most significant upgrade to date. 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 performance. FEATURES Less sound equals more ground 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 MADE IN THE USA Can be used with FMF or Stock OEM Header
