Q4 HEX S/A 044452 KTM-450 EXC-2011 -Developed over years of championship

-Developed over years of championship off-road racing

Made from premium American materials

The supercross version is designed for more low to mid-range power where the moto version is focused in the mid to upper RPM range

The FMF Fatty pipe broadens the powerband and will provide you with a healthy power increase everywhere

Q4 HEX S/A 044452 KTM-450 EXC-2011 -Developed over years of championshipFMF 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