The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. In addition, FMF achieve a shorter overall length that is less susceptible to crash damage and complementary to their Factory Forward Engineering - moving the muffler closer to the motor to centralise mass. The Factory 4.1 RCT is constructed from only aerospace grade materials that meet FMF exacting specifications and is manufactured 100% at their Southern California factory.

FEATURES

• Available in Natural Aluminium Muffler with Carbon End Cap 
• Massive Power gains throughout the RPM range.
• Huge weight savings
• New RTS (Rapid Tuning System)
• Advanced engineering and patented design
• Meets AMA/FIM 94dB sound requirement
• Spark arrestor available for purchase
  
• Use with FMF or stock/OEM header
• Easily serviced for repacking
• FMF uses the highest quality proprietary blend of alloy grade titanium made especially to FMF standards.

Please note: Image for reference. Correct product will be provided.

SPECIFICATIONS

Notice: Closed Course Use Only
Item ID: 045558
Type: Slip-On
Configuration: Single
Const: Aluminium
Finish: Natural
Midpipe: Stainless Steel
Endcap: Carbon
Spark Arrestor: Screen Insert (included)
Carb Warning: no
Quiet Insert: 94dB Insert (included)
Weight: 4.4 lbs

BIKE FITMENT

HUSABERG

• FE 250 2013-2014
• FE 350 2013-2014
• FE 450 2013-2014
• FE 501 2013-2014

HUSQVARNA

• FE250 2014-2016
• FE350 2014-2016
• FE450 2014-2016
• FE501 2014-2016

KTM

• 250 EXC-F 2008-2016
• 250 SX-F 2009-2015
• 250 XC-F 2014-2015
• 350 EXC-F 2012-2016
• 350 SX-F 2011-2015
• 350 XC-F 2012-2015
• 400 EXC 2008-2011
• 450 EXC-F 2008-2016
• 450 SX-F 2007-2015
• 450 XC-F 2013-2015
• 500 EXC-F 2012-2016
• 505 SX-F 2007-2010
• 505 XC-F 2007-2009
• 530 EXC 2008-2011