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FMF Q4 Slip-On Exhaust KTM 450 / 525 / 530 2004-2011
  • FMF Q4 Slip-On Exhaust KTM 450 / 525 / 530 2004-2011 - Stainless Steel/Aluminum/Stainless Steel

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Video Reviews (2)

FMF Q4 Slip-On Exhaust KTM 450 / 525 / 530 2004-2011 Videos

This product is legal in California only for racing vehicles which may never be used, registered or licensed for use upon a highway.

FMF Q4 Slip-On Exhaust KTM 450SX / 450XC / 450XC-W / 450EXC / 450EXC-R / 450MXC / 525MXC / 525SX / 525XC / 525XCW / 530EXC / 530EXC-R 

FMF is the leader in high performance, quiet exhaust technology and the Q4 Slip-On muffler is the perfect choice when looking to decrease sound levels without sacrificing horsepower. The Q4 exhaust employs intricate chambers, baffles and proprietary multi-stage packing material, making it one of the best performing quiet mufflers available. With the Q4, FMF has proven you don’t need to settle for a plugged up, horsepower-robbing muffler to keep noise levels down.


  • Developed over years of championship off-road racing
  • Max Sound output 96 dB; most models below 93 dB
  • Constructed from aircraft grade aluminum
  • Removable spark arrestor included
  • Can be used with stock or FMF Header
  • Weight: 5.0 lbs
  • 100% Made in the USA
4.8 / 5
Bang For The Buck
4 / 5
This Product Fits:
450 EXC 20042006, 20092011
450 EXC-R 2008
450 MXC 2004, 2005
450 SX 2004, 2005, 2006
450 XC 2006, 2007
450 XC-W 2007
525 EXC 2004, 2005, 2006
525 MXC 2004, 2005
525 SX 2004, 2005, 2006
525 XC 2006, 2007
525 XC-W 2007
530 EXC 2009, 2010, 2011
530 EXC-R 2008
Product Style RevZilla Item # Manufacturer Product # Availability
Stainless Steel/Aluminum/Stainless Steel 894459 045124 Out of Stock


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