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STAINLESS STEEL ALUM. FACT-4.1 RCT W/R.CARBON CAP FULL SYSTEM ()

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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 Natural Aluminum with Carbon Fiber End Cap

-Massive Power gains throughout the RPM range.

-Huge weight savings

-New RTS (Rapid Tuning System)

-FMF uses the highest quality proprietary blend stainless steel made especially to our standards.

Notice: Closed Course Use Only
Item ID: 041561
Type: System
Configuration: Single
Const: Aluminum
Finish: Natural
Midpipe: Stainless Steel
Endcap: Carbon
Spark Arrestor: Screen Insert (included)
Carb Warning: no
Quiet Insert: 94dB Insert (included)
Header Const: Stainless Steel
Header Type: MegaBomb

Item Id - Manual Description
041561 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
041561 - INST SHEET HEADER
041561 - INST SHEET HON CRF450R/RX'17 SINGLE PC-4/Q4 MFLRS (041557-58/63-64)
042356 - INST SHEET KAW KX450F'09 4.1 MFLRS
042356 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
042356 - INST SHEET HEADER
042372 - INST SHEET KAW KX450F'19 F4.1 RCT MFLRS
042372 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
042372 - INST SHEET HEADER
042377 - INST SHEET HEADER
042377 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
042377 - INST SHEET KAW KX250F'17 F4.1 RCT MFLRS
043366 - INST SHEET HEADER
043366 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
043366 - INST SHEET RMZ450'11 F4.1 HEX/RCT MFLR (043299-3306)
043374 - INST SHEET HEADER
043374 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
043374 - INST SHEET SUZ RMZ250'19 FACT-4.1 (043372-75)
044414 - INST SHEET YAM YZ450F'14 FACT-4.1 RCT MFLRS (04405-12)
044414 - INST SHEET YAM YZ450F'14 M-BOMB HEADERS (04402-03)
044414 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
044430 - INST SHEET YAM YZ250F'14 M-BOMB HEADERS (04421-22)
044430 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
044430 - INST SHEET YAM YZ250F'14 FACT-4.1 RCT MFLRS (044427-31)
044446 - INST SHEET YAM YZ450F'18 PC-4/Q4/FACT-4.1 RCT MFLRS (04441-47)
044446 - INST SHEET YAM YZ450F'18 M-BOMB HEADERS (044439-40)
044446 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
044456 - INST SHEET YAM YZ250F'19 M-BOMB HEADERS (044449-50)
044456 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
044456 - INST SHEET YAM YZ250F'19 PC-4/Q4/FACT-4.1 RCT MFLRS (044451-57)
044460 - INST SHEET YAM YZ450F'18 PC-4/Q4/FACT-4.1 RCT MFLRS (04441-47)
044460 - INST SHEET YAM YZ450F'18 M-BOMB HEADERS (044439-40)
044460 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
045613 - INST SHEET KTM250/450SXF'15 FE HEADER/MID
045634 - INST SHEET KTM250-450SXF'18-19 FE F4.1 RCT COMP SYSTEM
045634 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
045634 - INST SHEET KTM250-450SXF'18-19 FE F4.1 RCT SLIP-ON MFLR
045636 - INST SHEET KTM250-450SXF'18-19 FE F4.1 RCT COMP SYSTEM
045636 - INST SHEET KTM250-450SXF'18-19 FE F4.1 RCT SLIP-ON MFLR
045636 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
045638 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
045638 - INST SHEET KTM250-450SXF'18-19 FE F4.1 RCT SLIP-ON MFLR
045638 - INST SHEET KTM250-450SXF'18-19 FE F4.1 RCT COMP SYSTEM
045649 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
045649 - INST SHEET KTM250XCF'20 F4.1 RCT SLIP-ON MFLR
045650 - INST SHEET KTM250XCF'20 F4.1 RCT SLIP-ON MFLR
045650 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
045651 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
045651 - INST SHEET KTM250XCF'20 F4.1 RCT SLIP-ON MFLR
045662 - INST SHEET KTM250XCF'20 F4.1 RCT SLIP-ON MFLR
045662 - INST SHEET FACT-4.1 RCT SPIRAL RING REMOVAL
Make Model Year Make Model Year
HONDA CRF450R 17-20 HONDA CRF450RWE 19
HONDA CRF450RWE 19
HONDA CRF450RX 17-20
    HON CRF450R'17-20/RX'17-20 ANO TITANIUM FACTORY 4.1 RCT SLIP-ON MFLR W/R.CARBON CAP W/SIDE PANEL   Item ID: 041560 - FACTORY 4.1 RCT TITANIUM ANODIZED SL (Slip-On) W/ CARBON CAP
    For: HONDA CRF450R 2017

     

    HON CRF450R'17-20/RX'17-20 ANO TITANIUM FACT-4.1 RCT MFLR W/R.CARBN CAP SS M-BOMB SYS W/SIDE PANEL   Item ID: 041562 - FACTORY 4.1 RCT TITANIUM ANODIZED FULL SYSTEM W/ CARBON END CAP
    For: HONDA CRF450R 2017

     

    HON CRF450R'17-20/RX'17-20 S/S ALUM. FACTORY 4.1 RCT SLIP-ON MFLR W/R.CARBON CAP W/SIDE PANEL   Item ID: 041559 - FACTORY 4.1 RCT STAINLESS SL (SLIP-ON) W/ CARBON END CAP
    For: HONDA CRF450R 2017

     

    HON CRF450R'17-20/RX'17-20 HEX Q4 S/A MFLR W/SIDE PANEL   Item ID: 041558 - Q4 HEX S/A
    For: HONDA CRF450R 2017

     

    HON CRF450R'17-20/RX'17-20 P-CORE 4 HEX MFLR W/SIDE PANEL   Item ID: 041557 - Powercore 4 HEX
    For: HONDA CRF450R 2017

     

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