The FMF Q has always been in a league of its own and the Q4 HEX is the most significant upgrade to date. Don't settle for a plugged-up moto muffler hampered by a power-robbing exhaust insert when you can have a compliant muffler that's engineered for performance. More power, with less noise in a nifty HEX-shaped muffler design. FMF 's Q4 HEX is proof that FMF is the only US manufacturer to offer dedicated quiet exhaust systems.
Fits stock or FMF headers
Meets USFS and FIM World Enduro sound regulations
Less sound means you can travel without worries of getting a ticket from The Man
Rugged aluminum sleeve muffler design for off-road endurance
Power gains throughout the entire RPM range
Includes USFS-approved spark arrestor and 94 dB sound insert
Lighter than stock, with added power
Made in the USA
The FMF Q has always been in a league of its own and the Q4 HEX is the most significant upgrade to date. Don't settle for a plugged-up moto muffler hampered by a power-robbing exhaust insert when you can have a compliant muffler that's engineered for performance. More power, with less noise in a nifty HEX-shaped muffler design. FMF 's Q4 HEX is proof that FMF is the only US manufacturer to offer dedicated quiet exhaust systems.
Fits stock or FMF headers
Meets USFS and FIM World Enduro sound regulations
Less sound means you can travel without worries of getting a ticket from The Man
Rugged aluminum sleeve muffler design for off-road endurance
Power gains throughout the entire RPM range
Includes USFS-approved spark arrestor and 94 dB sound insert
Lighter than stock, with added power
Made in the USA
Product Note:
Specification
Details
Color
Varies (make selection above)
Country of Origin
USA
Finish
Varies (make selection above)
Mid-Pipe
Varies (make selection above)
Muffler End Cap
Stainless Steel
Muffler Sleeve
Aluminum
USFS Approved Spark Arrestor
Varies (make selection above)
Color
Clear
Country of Origin
USA
Finish
Anodized
Mid-Pipe
Stainless Steel
Muffler End Cap
Stainless Steel
Muffler Sleeve
Aluminum
Vehicle Fitment
Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.
Kawasaki
KLX250S 2009-2015
KLX250SF 2009-2010
Customer Reviews
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Questions & Answers
Will the carb need to be rejetted
By Mike
Stock 2012 klx 250.
Typically, it is not necessary to re jet for just a slip-on.
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