FMF Muffler Factory 4.1 RCT Slip-on Titanium blue silencer KTM SX-F 250/350/450 07-15 & EXC 450/530 2009-2011 & Husqvarna FE 250/350/450/500 2014-2016

SX-F 350 2011 - 2015
XC-F 350 2011 - 2015
XCF-W 350 2012 - 2016

XCW 400 2009 - 2010

EXC 450 2009 - 2011
EXCR 450 2008
SMR 450 2013
SX-F 450 2007 - 2015
SX-F 450 Factory edition 2012 - 2014
XCF 450 2009
XC-F 450 2013 - 2015
XCRW 450 2008
XCW 450 2009 - 2010
XC-W 450 2012- 2016

XCF-W 500 2012 - 2014
XC-W 500 2013 - 2016

SX-F 505 2008
XCF 505 2008 - 2009

EXC 530 2009 - 2011
EXC-R 530 2008
XCRW 530 2008
XCW 530 2009 - 2010

EXC 500 2012-2016

FMF 045561

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

-Available in Blue Anodized Titanium Muffler with Carbon End Cap

-Massive Power gains throughout the RPM range.

-Huge weight savings

-New RTS (Rapid Tuning System)

-FMF uses the highest quality proprietary blend of alloy grade titanium made specifically to our standards.

Notice: Closed Course Use Only
Item ID: 045561
Type: Slip-On
Configuration: Single
Const: Titanium
Finish: Blue Anodized
Midpipe: Titanium
Endcap: Carbon
Spark Arrestor: Screen Insert (included)
Carb Warning: no
Quiet Insert: 94dB Insert (included)
Weight: 4 lbs.