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FACTORY 4.1 RCT TITANIUM ANODIZED SL (Slip-On) W/ CARBON CAP ()

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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.

-See Features Tab -> Fitment for header compatibility 

Notice: Closed Course Use Only
Item ID: 045668
Type: Slip-On
Configuration: Single
Const: Titanium
Finish: Blue Anodized
Midpipe: Stainless Steel
Endcap: Carbon
Spark Arrestor: Screen Insert (included)
Carb Warning: no
Quiet Insert: 94dB Insert (included)

Item Id - Manual Description
041440 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
041440 - INST SHEET HON CRF250R'11 PC-4/Q4 MFLRS (041465-68)
041546 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
041546 - INST SHEET HON TRX450R'06-07 FACTORY 4.1 MUFFLER (04124-67)
041560 - INST SHEET HON CRF450R/RX'17 SINGLE PC-4/Q4 MFLRS (041557-58/63-64)
041560 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
041587 - INST SHEET HON CRF450X'19 HEX Q4 MFLR (041578)
042259 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
042259 - INST SHEET KAW KX250F'09 4.1 MFLRS
042267 - INST SHEET KAW KX450F'09 4.1 MFLRS
042267 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
042286 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
042286 - INST SHEET KAW KX450F'09 4.1 MFLRS
042333 - INST SHEET KAW KX450F'09 4.1 MFLRS
042333 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
042371 - INST SHEET KAW KX450F'19 F4.1 RCT MFLRS
042371 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
042376 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
042376 - INST SHEET KAW KX250F'17 F4.1 RCT MFLRS
043350 - INST SHEET SUZ RMZ250'13 FACT-4.1 (043346-53)
043350 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
043365 - INST SHEET RMZ450'11 F4.1 HEX/RCT MFLR (043299-3306)
043365 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
043373 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
043373 - INST SHEET SUZ RMZ250'19 FACT-4.1 (043372-75)
044365 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
044365 - INST SHEET YAM YZ450F'07 FACTORY 4.1 (044234-39)
044373 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
044373 - INST SHEET YZ450F'10 FACT-4.1 SLIP-ON MFLR (044338-41)
044400 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
044409 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
044409 - INST SHEET YAM YZ450F'14 FACT-4.1 RCT MFLRS (04405-12)
044429 - INST SHEET YAM YZ250F'14 FACT-4.1 RCT MFLRS (044427-31)
044429 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
044445 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
044445 - INST SHEET YAM YZ450F'18 PC-4/Q4/FACT-4.1 RCT MFLRS (04441-47)
044455 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
044455 - INST SHEET YAM YZ250F'19 PC-4/Q4/FACT-4.1 RCT MFLRS (044451-57)
044466 - INST SHEET YAM YZ450F'18 PC-4/Q4/FACT-4.1 RCT MFLRS (04441-47)
044466 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
045561 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
045561 - INST SHEET KTM250-350SXF'13 PC-4.1/TI PC/HEX Q4 (045500-045503)
045570 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
045570 - INST SHEET HSQVR FC250/FC450/FE501 SLIP-ON MFLRS (045562-70)
045586 - INST SHEET KTM250/450SXF'15 FE F4.1 HEX S/O MFLR
045586 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
045629 - INST SHEET KTM250-450SXF'18-19 FE F4.1 RCT SLIP-ON MFLR
045629 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
045633 - INST SHEET KTM250-450SXF'18-19 FE F4.1 RCT SLIP-ON MFLR
045633 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
045648 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
045648 - INST SHEET KTM250XCF'20 F4.1 RCT SLIP-ON MFLR
045668 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
Make Model Year Make Model Year
BETA 350RR 20-21 BETA 390RR 20-21
BETA 390RR 20-21
BETA 430RR 20-21 BETA 480RR 20-21
BETA 480RR 20-21
    BETA 350/390/430/480RR'20-21 HEX Q4 S/A MFLR   Item ID: 045667 - Q4 HEX S/A
    For: BETA 350RR 2020

     

    BETA 350/390/430/480RR'20-21 P-CORE 4 HEX MFLR   Item ID: 045666 - Powercore 4 HEX
    For: BETA 350RR 2020

     

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