FMF Factory 4.1 SL Slip-On Exhaust

Item Number: 327335

$297.88$630.86

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888-575-6570

Product Description

FMF Racing

FMF Factory 4.1 SL Slip-On Exhaust

The Factory 4.1 is FMF Racing's premier performance exhaust. With 30 years of racing experience behind it, the Factory 4.1 takes advantage of everything they've learned on the race track. Horsepower gains throughout RPM range.

  • Titanium canister shape and size is lighter and more performance-optimizing
  • Front and rear end cap designs developed to enhance fit, function and style
  • Fixed, specific mounting brackets for slip-ons and full systems
  • Excellent fit, finish and attention to detail

Spec Details
Configuration Single
Country of Origin USA
Mid-Pipe Varies (make selection above)
Muffler End Cap Varies (make selection above)
Muffler Sleeve Varies (make selection above)
Spark Arrestor Varies (make selection above)

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.

Honda

  • CRF150R 2007-2009, 2013-2014
  • CRF250R 2004-2005
  • CRF250X 2004-2009, 2013
  • CRF450R 2005-2010
  • TRX700XX 2008-2009

Husqvarna

  • SMS630 2011-2012
  • TE 630 2011-2012

KTM

  • 250 SX-F 2005-2008
  • 250 XC-F 2007-2008
  • 250 XCF-W 2007-2008
  • 450 MXC-G Racing 2004-2005
  • 450 SX 2006
  • 450 XC 2007
  • 450 XC-W 2007
  • 525 MXC-G Racing 2004-2005
  • 525 SX 2006
  • 525 SX Racing 2004-2005
  • 525 XC 2007
  • 525 XC-W 2007
  • 690 Enduro 2008
  • 690 SMC 2008-2010

Kawasaki

  • KFX400 2003-2006
  • KLX450R 2008-2009
  • KX250F 2004-2008
  • KX450F 2006-2008

Suzuki

  • LT-Z400 QuadSport 400 2003-2014
  • RM-Z250 2004-2006
  • RM-Z450 2008-2010
  • RMX450Z 2010

Yamaha

  • WR250F 2007-2013
  • WR450F 2007-2011
  • YFM350R Raptor 350 2005-2013
  • YFM700R Raptor 700R 2006-2014
  • YFZ450 2004-2009, 2012-2013
  • YFZ450R 2009-2014
  • YFZ450X 2010-2011
  • YZ250F 4-Stroke 2006-2010
  • YZ450F 2006-2009

Customer Reviews

Questions & Answers