977 products
977 products
YZ250F'19-25/250FX'20-23/450F'18-25/450FX'19-23 TITANIUM KICK SHIELD 040691
040691
FMF 4.1 COLORWAYS 2020 LOGO KIT - ORANGE 014850
014850
FMF 4-STROKE RACE PACKING 015303
015303
Did you know a freshly packed silencer or muffler actually restores power?
Our Performance Packing is comprised of fine, blended interwoven fiberglass fibers made to FMF’s specifications for high heat resistance, great sound attenuation and optimum performance and longevity. Look for FMF’s distinctive red performance packing.
FMF 4.1 COLORWAYS 2020 LOGO KIT – BLUE 014849
014849
FMF TITANIUM MEGABOMB HEADER HEAT SHIELD (UNIVERSAL) 040692
040692
FACTORY 4.1 RCT SPARK ARRESTOR INSERT 040638
040638
ULTRA QUIET F4.1 RCT QUIET CORE S/A INSERT 040689
040689
Fits late 2021 & 2022 mufflers only
FMF SHORTY NEW VINYL DECAL REPLACEMENT 014845
014845
FMF 4-STROKE WASH PLUG WITH STREAMER 011299
011299
FMF HEX POWERCORE 4 WRAP LOGO ALUMINUM DECAL REPLACEMENT 014842
014842
Muffler decals peeling off or just need a freshen up? We now offer replacement decals for most model exhausts!
FMF FACTORY 4.1 KEYCHAIN 011185
011185
HEX Q4/F4.1 RCT QUIET CORE S/A INSERT 040688
040688
Fits late 2021 & 2022 mufflers only
FMF PREMIER 2-STROKE PACKING 015301
015301
Did you know a freshly packed silencer or muffler actually restores power?
Our Performance Packing is comprised of fine, blended interwoven fiberglass fibers made to FMF’s specifications for high heat resistance, great sound attenuation and optimum performance and longevity. Look for FMF’s distinctive red performance packing.
FMF TURBINECORE 2.1 WRAP MYLAR DECAL REPLACEMENT 014828
014828
FMF 2-STROKE S/A (T-CORE, Q) DECAL REPLACEMENT 012699
012699
FACT-4.1 RCT REPLACEMENT SPIRAL RETAINING RING 040677
040677
P-CORE 4 HEX S/A INSERT 040670
040670
Shorty 024080
024080
Taking the proven success of the Powercore 2, FMF created the Powercore 2 Shorty, with a shorter inner core length and aluminum canister. This design results in a finely tuned bolt on performance silencer that maximizes bottom and mid rpm power. An excellent choice for tight tracks and supercross track applications.
FMF ASSORTED STKR SHEET 014800
014800
FMF 5" OVAL STICKER (YEL/RED) (25 PACK) 012482
012482
FACTORY 4.1 RCT TITANIUM ANODIZED SL (Slip-On) W/ CARBON CAP 044445
044445
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
FMF POWERCORE 2.1 MYLAR DECAL REPLACEMENT 014826
014826
Shorty 025259
025259
Taking the proven success of the Powercore 2, FMF created the Powercore 2 Shorty, with a shorter inner core length and aluminum canister. This design results in a finely tuned bolt on performance silencer that maximizes bottom and mid rpm power. An excellent choice for tight tracks and supercross track applications.
Factory Fatty 025290
025290
The Factory Fatty is reminiscent of the “works” or cone pipe once used by Factory Teams. It shares many of the same characteristics with its’ craftsmanship and material quality. The Factory Fatty broadens and smoothes out the power curve while boosting gains throughout the entire power band, more low-end, more mid, and increased over-rev. No matter what type of riding you do, the Fatty has the benefits you’re looking for.
-Lighter 20 gauge steel used for the body of the pipe.
-19 Gauge steel used for the header portion.
-Includes O-rings on most models
-Hand pounded seams for smooth flow transitions.
-O-Rings Included
FMF TITANIUM POWERCORE 2.1 MYLAR DECAL REPLACEMENT 3PC 014950
014950
FMF BIG DON FRONT FENDER STICKER KIT 014802
014802
FACTORY 4.1 RCT TITANIUM ANODIZED SL (Slip-On) W/ CARBON CAP 044455
044455
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
FMF 4-STROKE REPACKING PILLOW 015302
015302
Did you know a freshly packed silencer or muffler actually restores power?
Our Performance Packing is comprised of fine, blended interwoven fiberglass fibers made to FMF’s specifications for high heat resistance, great sound attenuation and optimum performance and longevity. Look for FMF’s distinctive red performance packing.
Factory Fatty 025239
025239
The Factory Fatty is reminiscent of the “works” or cone pipe once used by Factory Teams. It shares many of the same characteristics with its’ craftsmanship and material quality. The Factory Fatty broadens and smoothes out the power curve while boosting gains throughout the entire power band, more low-end, more mid, and increased over-rev. No matter what type of riding you do, the Fatty has the benefits you’re looking for.
-Lighter 20 gauge steel used for the body of the pipe.
-19 Gauge steel used for the header portion.
-Includes O-rings on most models
-Hand pounded seams for smooth flow transitions.
-O-Rings Included
Shorty Big Bore 025226
025226
FMF 2-STROKE WASH PLUG WITH STREAMER 012875
012875
Shorty 022009
022009
Taking the proven success of the Powercore 2, FMF created the Powercore 2 Shorty, with a shorter inner core length and aluminum canister. This design results in a finely tuned bolt on performance silencer that maximizes bottom and mid rpm power. An excellent choice for tight tracks and supercross track applications.
FACTORY 4.1 RCT TITANIUM ANODIZED SL (Slip-On) W/ CARBON CAP 045648
045648
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
FMF GRIP DONUTS 011184
011184
FMF 4-STROKE 70MM STAINLESS STEEL SWIVEL SPRING KIT P/N 011396 011396
011396
FMF P-CORE2 NEW VINYL DECAL REPLACEMENT 014844
014844
FMF TEAM FENDER STICKERS 5" (4 PCS) 014835
014835
PowerCore 2 025225
025225
The infamous Powercore 2 is the measure which others aim for. With its lightweight extruded aluminum oval canister mated to a perforated core, this silencer is above the competition. The Powercore 2 silencer provides a strong performance edge for any 2-stroke machine and the performance flow end cap and front stinger are stainless steel for unbeatable durability and an unmatched look.
Gnarly 025289
025289
The FMF Gnarly pipe focuses on increasing the lower RPM horsepower and torque to get you out of the toughest terrain. When looking to add 4-stroke tractor like torque to your 2-stroke and you need a pipe to withstand the harsh elements, this is the pipe for you. Strong and rugged, this aggressive pipe dishes out handfuls of torque and bottom to mid range pull needed for late model 200cc through 500cc machines and the rigors of the off road domain.
-Nickel plating is an FMF trademark and has been ‘copied’ by everyone making it the most imitated expansion chamber in the world.
-Super strong18 gauge steel construction makes it GNARLY!
-O-Rings Included
Factory Fatty 024077
024077
The Factory Fatty is reminiscent of the “works” or cone pipe once used by Factory Teams. It shares many of the same characteristics with its’ craftsmanship and material quality. The Factory Fatty broadens and smoothes out the power curve while boosting gains throughout the entire power band, more low-end, more mid, and increased over-rev. No matter what type of riding you do, the Fatty has the benefits you’re looking for.
-Lighter 20 gauge steel used for the body of the pipe.
-19 Gauge steel used for the header portion.
-Includes O-rings on most models
-Hand pounded seams for smooth flow transitions.
-O-Rings Included
RCT S/S REPLACEMENT END CAP KIT 040641
040641
·Now offering complete end cap rebuild kits. Whether it be for a Powercore 4, Q4, Factory 4.1 or the new RCT we have you handled. The kit includes Stainless Steel, Titanium, or Carbon Fiber (RCT Only) end cap, 3/16 stainless steel rivets, and strap mounts to secure end cap to canister.
FMF P-CORE4 ALUMINUM PATRIOTIC DECAL REPLACEMENT 014846
014846
Shorty 024019
024019
Taking the proven success of the Powercore 2, FMF created the Powercore 2 Shorty, with a shorter inner core length and aluminum canister. This design results in a finely tuned bolt on performance silencer that maximizes bottom and mid rpm power. An excellent choice for tight tracks and supercross track applications.
FMF 4-STROKE MFLR PACKING 010590
010590
Did you know a freshly packed silencer or muffler actually restores power?
Our Performance Packing is comprised of fine, blended interwoven fiberglass fibers made to FMF’s specifications for high heat resistance, great sound attenuation and optimum performance and longevity. Look for FMF’s distinctive red performance packing.
FMF HEX Q4 WRAP LOGO ALUMINUM DECAL REPLACEMENT 014843
014843
Muffler decals peeling off or just need a freshen up? We now offer replacement decals for most model exhausts!
FACTORY 4.1 RCT TITANIUM ANODIZED SL (Slip-On) W/ CARBON CAP 045586
045586
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
FACTORY 4.1 RCT TITANIUM ANODIZED SL (Slip-On) W/ CARBON CAP 045561
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.
-See Features Tab -> Fitment for header compatibility
Shorty 024010
024010
Taking the proven success of the Powercore 2, FMF created the Powercore 2 Shorty, with a shorter inner core length and aluminum canister. This design results in a finely tuned bolt on performance silencer that maximizes bottom and mid rpm power. An excellent choice for tight tracks and supercross track applications.
Factory Fatty Rev Pipe 025240
025240
The FMF Rev pipe focuses its power delivery in the middle and upper rpms of the powerband. If you’re running out of power up top, want more time between shifts and do a lot of deep berm or sand riding, the FMF Rev is your pipe of choice.
FMF Racing's Tru-Flo stamping process ensures a perfect fit and optimum performance.
Dyno and track tested for every application.
Includes O-rings.
Factory Fatty 024052
024052
The Factory Fatty is reminiscent of the “works” or cone pipe once used by Factory Teams. It shares many of the same characteristics with its’ craftsmanship and material quality. The Factory Fatty broadens and smoothes out the power curve while boosting gains throughout the entire power band, more low-end, more mid, and increased over-rev. No matter what type of riding you do, the Fatty has the benefits you’re looking for.
-Lighter 20 gauge steel used for the body of the pipe.
-19 Gauge steel used for the header portion.
-Includes O-rings on most models
-Hand pounded seams for smooth flow transitions.
-O-Rings Included
FMF YZ250 99-25 PIPE SPRING & O-RING KIT P/N 011318 011318
011318
Gnarly 025242
025242