FMF Q4 Slip-On Exhaust

    FMF Q4 Slip-On Exhaust

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    Was $289.95 - $649.95 $246.46 - $552.46 You save up to $97.49 (15%)

    Rating 4.60 of 5 (42 Reviews)
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    Product Information

    FMF Q4 Slip-On Exhaust

    With riding areas threatened more every day, FMF takes seriously the expression ‘less sound equals more ground’ and with the Q4, FMF has designed a slip-on exhaust that leads in high performance quiet technology. Using the best materials, the Q4 uses intricate chambers and baffles to improve flow while still dampening sound. Roost more, ride more and offend less with the FMF Q4!
    • Developed over years of championship off-road racing
    • Max Sound output 96dB; most models below 93dB
    • Constructed from aircraft grade aluminum and high strength stainless steel
    • Use with stock or FMF header
    • Removable USFS spark arrestor included
    • Pounds lighter than stock in many cases
    • Twin stage core design for lower sound output and extended life of packing material

    Click Here for Additional Exhaust Information
    • Item # 6903

    **Closeouts are limited to stock on hand**

    FitmentView All

    Can-Am Models

    • DS 450 EFI: 2008 - 2011
    • DS 450 X: 2008
    • DS 450 X MX: 2011
    • DS 450 X XC: 2011

    Honda Models

    • CRF150F: 2003 - 2009, 2012 - 2015
    • CRF150R: 2007 - 2010, 2012 - 2014
    • CRF150R Expert: 2007 - 2009, 2012
    • CRF230F: 2003 - 2009, 2012 - 2015
    • CRF230L: 2008 - 2009
    • CRF230M: 2009
    • CRF250L: 2013 - 2014
    • CRF250R: 2004 - 2010
    • CRF250X: 2004 - 2009, 2012 - 2013
    • CRF450R: 2003, 2005 - 2012
    • CRF450X: 2005 - 2010, 2012 - 2013
    • TRX250X: 1987 - 1988, 1991
    • TRX300EX: 1993 - 2009
    • TRX300X: 2009
    • TRX400EX: 1999 - 2009
    • TRX400X: 2009, 2012 - 2014
    • TRX450R: 2004 - 2009, 2012 - 2013
    • TRX450R (Electric Start): 2009, 2014
    • TRX450R ES: 2006 - 2008
    • TRX700XX: 2008 - 2009
    • XL600R: 1986
    • XR400R: 1996 - 2004
    • XR600R: 1986 - 2000
    • XR650L: 1993 - 2009, 2012 - 2014
    • XR650R: 2000 - 2007

    Husqvarna Models

    • SM630: 2011
    • SMS630: 2011
    • TC450: 2009
    • TE 630: 2011
    • TE310: 2013

    Kawasaki Models

    • KFX400: 2003 - 2006
    • KFX450R: 2008 - 2011
    • KLR250: 1990 - 2004
    • KLR650: 1987 - 2014
    • KLX250S: 2006 - 2007, 2009 - 2010, 2012 - 2014
    • KLX250SF: 2009 - 2010
    • KLX400S: 2003
    • KLX450R: 2008 - 2009
    • KX250F: 2004 - 2008
    • KX450F: 2006 - 2011

    KTM Models

    • 350 EXC-F: 2012 - 2014
    • 400 EXC: 2001
    • 400 MXC: 2001 - 2002
    • 400 SX: 2000 - 2002
    • 450 EXC: 2004 - 2005, 2009 - 2011
    • 450 MXC: 2004 - 2005
    • 450XC: 2008 - 2010
    • 500 EXC: 2012 - 2014
    • 505SX: 2009
    • 520 EXC: 2000 - 2002
    • 520 MXC: 2001 - 2002
    • 520 SX: 2000 - 2002
    • 525 EXC: 2003 - 2006
    • 525 MXC: 2004 - 2005
    • 525 SX: 2003 - 2006
    • 525 XC: 2006 - 2007
    • 525 XC-G Racing: 2007
    • 525XC: 2008 - 2009
    • 530 EXC: 2009 - 2011
    • 530 EXC-R: 2008, 2008 - 2011
    • 690 Enduro: 2008
    • 690 Enduro R: 2009 - 2010, 2013 - 2014
    • 690 SMC: 2008 - 2010
    • 950 Adventure: 2004 - 2007
    • 950 Adventure S: 2004 - 2006
    • 950 Super Enduro R: 2008
    • 950 Supermoto: 2005 - 2007
    • 990 Adventure: 2007 - 2011
    • 990 Adventure R: 2011
    • 990 Adventure S: 2007 - 2008
    • 990 Supermoto R: 2010 - 2011

    Polaris Models

    • Outlaw 450 MXR: 2009
    • Outlaw 525 IRS: 2007
    • Predator 500: 2003 - 2007

    Suzuki Models

    • DR200SE: 2009, 2013
    • DR650SE: 1997 - 2009, 2011 - 2014
    • DR-Z400: 2006 - 2007
    • DR-Z400S: 2000 - 2009, 2011 - 2014
    • DR-Z400SM: 2005 - 2009, 2013 - 2014
    • QuadRacer R450: 2006 - 2009
    • QuadSport Z250: 2004 - 2009
    • QuadSport Z400: 2003 - 2009, 2012 - 2013
    • RMX450Z: 2010
    • RM-Z250: 2004 - 2009

    Yamaha Models

    • Raptor 125: 2011 - 2013
    • Raptor 250: 2008 - 2013
    • Raptor 250 SE: 2008
    • Raptor 250 SE Custom: 2008
    • Raptor 250R: 2011
    • Raptor 350: 2005 - 2013
    • Raptor 660R: 2001 - 2005
    • Raptor 700: 2013 - 2014
    • Raptor 700R: 2006 - 2009, 2011, 2013 - 2014
    • Raptor 700R GYTR: 2007
    • Raptor 700R SE: 2007 - 2011, 2013 - 2014
    • TT-R250: 1999 - 2006
    • Warrior 350: 1987 - 2005
    • WR250F: 2001 - 2009, 2011 - 2013
    • WR250R: 2008 - 2011, 2013 - 2015
    • WR250X: 2008 - 2011
    • WR400F: 1998 - 2000
    • WR426F: 2001 - 2002
    • WR450F: 2003 - 2009, 2011
    • YFZ450: 2004 - 2009, 2013
    • YFZ450R: 2009 - 2014
    • YFZ450R SE: 2010 - 2011, 2013 - 2014
    • YFZ450X: 2010 - 2011
    • YZ250F: 2001 - 2013
    • YZ400F: 1998 - 1999
    • YZ426F: 2000 - 2002

    Product Reviews Showing 15 of 42 Reviews

    Overall Rating: 4.60 of 5

    (42 Reviews)
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    What Other Riders Are Saying...

    Fit

    Quality

    Sound

    Install

    Performance

    2014 KTM 690 Supermoto

    Replaced the OEM pipe and dropped 10LBs...Added a couple more HPs... The pipe is not obnoxiously load, but loud enough when you get on it, or need to let other drivers/riders, know you are there!

    Jonathan - November 17, 2014

    (Vista, CA)

    Fit

    Quality

    Sound

    Install

    Performance

    Sounds great and looks good

    Besides the hefty price tag that came with this exaust, the performance difference in my quad was amazing. After it shipped fairly quickly from the warehouse, I was able to install it easily with only a few problems with the supplied bracket.

    Chris - August 21, 2014

    (Oak Hills, CA)

    Fit

    Quality

    Sound

    Install

    Performance

    Good for the price

    Needed to replace a stock muffler with one that advertised performance, sound, and spark arrestor. Performance is equal, spark arrestor is required, and sound is... better.

    LArry - August 16, 2014

    (jackson hole, WY)

    Fit

    Quality

    Sound

    Install

    Performance

    Klx250 q4

    Excellent addition to bike. Sounds great, works great. Turns the bike into a proper moto. A little issue with fit due to some bent frame tabs. Didn't notice when installed originally, but once addressed all was good.

    Brian - April 05, 2014

    (Seattle, WA)

    Fit

    Quality

    Sound

    Install

    Performance

    It will do.

    Never had any issues with FMF products but this pipe was a bit pricey. Generally overall the construction is of top quality and adds a nice style to any bike. I found the exhaust sound to be quite weak and not much of an improvement from stock however I did find the throttle to be much more responsive.

    Tad - October 21, 2013

    (Niagara Falls, ON)

    Fit

    Quality

    Sound

    Install

    Performance

    2008 650 XRL HONDA

    I installed the Q4 exhaust along with the power bomb header and the jet kit back in 2010 and I love it. The only draw backs are the MPG's and the performance at high altitude. I live at 5,800 ft above sea level, and the higher you go, well the less power you have. Otherwise I would recommend it!

    Jim E - July 24, 2013

    (Montrose , CO)

    Fit

    Quality

    Sound

    Install

    Performance

    Sweet

    The fit was okay and was easy to install. I like the lower end power gain without being obnoxiously loud. I matched it with the mega-bomb header at the same time. After taking it out a few times it was time to re-jet. Very happy with the results!

    Geary - May 14, 2013

    (Scottsdale, AZ)

    Fit

    Quality

    Sound

    Install

    Performance

    love it

    love it just got it on the bike a few hour ago and love sounds good and looks good love it.

    David - September 24, 2012

    (Houston, TX)

    Fit

    Quality

    Sound

    Install

    Performance

    Great Product

    This pipe was easy to install and did not seem to take away any power. It did also make it a lot quieter. Overall very satisfied.

    Joe - September 17, 2012

    (toledo, OH)

    Fit

    Quality

    Sound

    Install

    Performance

    Klr

    Best mod i ever did...Period! day&night difference...perfect fit & finish, very satisfied!

    charles - August 15, 2012

    (edmundston, NB)

    Fit

    Quality

    Sound

    Install

    Performance

    It works like it should

    Easy install, sounds great on my TTR, and it did add some low end punch.

    rkoozno - August 15, 2012

    (Granby, CO)

    Fit

    Quality

    Sound

    Install

    Performance

    Good Muffler

    The Q4 is a great muffler and the sound tone is good. Very deep and throaty but I wish it was a little quieter.

    Cactus - May 01, 2012

    (Dover, AR)

    Fit

    Quality

    Sound

    Install

    Performance

    Lovin It!

    I installed this on my 08 YFZ 450, it was super easy and fast to install, love the sound now, performance boost too. Was worth every penny

    Cassie - April 19, 2012

    (Amarillo, TX)

    Fit

    Quality

    Sound

    Install

    Performance

    Outstanding!

    Works great, sounds great = no complaint! Added a Megabomb and FMF programmer and there was a noticeable difference. Highly recommend!

    Dave - March 16, 2012

    (West Plains, MO)

    Fit

    Quality

    Sound

    Install

    Performance

    Quality

    It's not too loud and has a better tone (stock sounded like a lawn mower). I made too many other changes at the same time to say anything about performance.

    Rick - February 09, 2012

    (Tucson, AZ)
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