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.
-Blue anodized titanium with carbon fiber end cap
-Massive Power gains throughout the RPM range
-Huge weight savings over stock system
-New RTS (Rapid Tuning System)
-Made from a proprietary blend of alloy grade titanium
-Same muffler used by Star Racing Yamaha, ClubMX, AmPro Yamaha, BarX Yamaha, and more
-Pairs best with Titanium MegaBomb Header #044450
P-CORE 4/Q4 S/S STRAIGHT CUT REPLACEMENT REAR CONE CAP 040634
Regular price
$34.99
/
040634
-Complete end cap rebuild kit. The kit includes Stainless Steel end cap, 3/16 stainless steel rivets, strap mounts to secure end cap to canister, and a tube of high temperature silicone.
-Fits all Powercore 4 and Q4 mufflers with separate strap mount applications.
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
P-CORE 4/Q4 HEX S/S REPLACEMENT REAR CONE CAP 040676
Regular price
$49.99
/
040676
Fatty 024072
Regular price
$299.99
/
024072
Our Fatty Gold Series pipe broadens the powerband and provides a healthy power increase everywhere. Improved throttle response, a linear powerband and enhanced over-rev all add up to a pipe that everyone will benefit from. The Fatty pipe is our most popular pipe for that same reason. If you’re riding trails, tracks or in the open desert, this pipe has what you’re looking for.
Number one pipe on the market.
FMF Racing’s Tru-Flo stamping process ensures a perfect fit and optimum performance.
Includes O-rings.
Fatty 025286
Regular price
$319.99
/
025286
With well over 35 years of racing experience behind it, the Fatty Gold Series pipe delivers race proven performance. The 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.
-More tractable power, improved throttle control
-Provides power gains throughout entire power band
-Carbon steel with a nickel plated finish for maximum durability
-FMF Racing’s Tru-Flo stamping process ensures a perfect fit and optimum performance.
-Can be used with FMF or stock silencer (unless noted)
-Our most popular 2-stroke pipe
-O-Rings Included
FMF POWERBOMB YOUTH Film System Clear Goggle
Regular price
$60.00
Sale price
$42.00
Save $18.00
/
F-50320-CLROBLKCLRYOUTH
•Includes 100% Forecast Film system with 45mm wide field of vision
•Removeable nose guard deflects roost and debris
•Anti-fog coated polycarbonate lens for clear vision
•Triple layer moisture managing face foam soaks up sweat
•45mm Ultra-wide silicon coated strap ensures a secure fit
•9 retention points secure lens in frame
•All youth FMF goggles share the same lens and tear-offs
•In the Box: Mud flap, 2 rolls of film and microfiber bag
GRIT HOODIE
Regular price
$66.00
/
FA26121900BONXL
80% Cotton /20% Polyester Pullover Hoody
Classic FMF Style
BLOCK PARTY TEE
Regular price
$36.00
/
FA26118901NATXXL
100% Soft Spun Cotton S/S Tee
Soft Hand Plastisol Print
Premium Fit
Factory Fatty Rev Pipe 025240
Regular price
$319.99
/
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.
The Mini Powercore 4 is the best bang for your buck performance bolt on for your mini. Offered as a standard Mini Powercore 4, Closed Course Big Bore System or as a Spark Arrestor Version, the Mini Powercore 4 features a Hi-Flo stainless steel core and formed end caps, an aircraft grade aluminum canister and a durable stainless steel header. Its pounds lighter than stock and you will swear the motor has been bored and stroked with the first twist of the throttle.
Hi-Flo Core and End Cap
Pounds lighter than stock
Stainless MegaBomb 045675
Regular price
$374.99
/
045675
This is used for a single sided exhaust system except part # 014553
Factory Fatty 025310
Regular price
$299.99
/
025310
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
PowerCore 2 020259
Regular price
$199.99
/
020259
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.
Titanium MegaBomb 044450
Regular price
$524.99
/
044450
The FMF Titanium MegaBomb Header gives your Yamaha stronger low-end and mid-range power while maintaining top end over-rev. The patented MegaBomb design is constructed from premium titanium to reduce weight and increase durability. Built for serious performance, the MegaBomb Header can deliver more power gains when paired with an FMF muffler.
-Massive Power gains throughout the RPM range.
-Weight savings over stock system
-Made from proprietary blend of high-quality alloy grade titanium
-Used by Star Racing Yamaha, ClubMX Yamaha, BarX Yamaha, AmPro Yamaha, and more.
-Championship winning design (12+ titles from '19-'26)
HON CRF110F'19-27 P-CORE 4 MFLR 041579
Regular price
$209.99
/
041579
The Mini Powercore 4 is the best bang for your buck performance bolt on for your mini. Offered as a standard Mini Powercore 4, Closed Course Big Bore System or as a Spark Arrestor Version, the Mini Powercore 4 features a Hi-Flo stainless steel core and formed end caps, an aircraft grade aluminum canister and a durable stainless steel header. Its pounds lighter than stock and you will swear the motor has been bored and stroked with the first twist of the throttle.
Hi-Flo Core and End Cap
Pounds lighter than stock
PATINA OVAL
Regular price
$32.00
/
SP26196905STNOS
5 Panel Snapback
Front Semi Raised Embroidery
FMF Woven Label at Snap Closure
Stainless MegaBomb 045677
Regular price
$374.99
/
045677
This is used for a single sided exhaust system except part # 014553
FACTORY 4.1 RCT STAINLESS SL (SLIP-ON) W/ CARBON END CAP 045594
Regular price
$549.99
/
045594
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 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 especially to our standards.
-See Features Tab -> Fitment for header compatibility
FMF FCTRY 4.1 MINI REPLACEMENT WRAP DECAL 014851
Regular price
$16.99
/
014851
The "Q" 025298
Regular price
$229.99
/
025298
Our highly acclaimed "Q" series silencers shook the motorcycling world on its debut in 2002. With its longer oval canister, the trademarked Q uses internal technology that retains optimum flow characteristics while enhancing sound absorbtion qualities. The U.S. Forest legal spark arrestor will meet the mandated 96dB sound level set by the US Forest Service making it the quietest 2-stroke performance spark arrestor made! Serious sound deadening qualities and excellent power.
Mid pipe aluminum sleeve worn out? We now offer a replacement aluminum inlet sleeve for most models.
Powercore 2.1 025307
Regular price
$239.99
/
025307
FMF is about moving forward...faster. The all new PowerCore 2.1 silencer is proof FMF is totally committed to 2-stroke progression. FMF loves 2-strokes, they ride 2-strokes, and they are devoted to delivering superior power to the 2-stroke faithful.
-Race-tested, smooth power curve throughout the RPM range.
-Engineered to assault today's tracks and trails
-Larger diameter canister for more tunability and longer lasting packing life.
-Delivers a crisp, notable sound.
-Lighter than stock.
-Optimally designed to complement performance of FMF pipes; works and fits FMF or stock.
AMERICAN MOTO HAT
Regular price
$32.00
/
FA26196902BLKOS
5 Panel Twill Snapback
Front Semi Raised Embroidery
Side Embroidery
FMF Woven Label at Snap Closure
FMF PREMIER 2-STROKE PACKING 015301
Regular price
$27.99
/
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.
PowerBomb 040038
Regular price
$279.99
/
040038
The redesigned PowerBomb is a four-stroke header that incorporates FMF’s patented PowerBomb module at a precise location in the initial stage of the header. By positioning this “Bomb” at a key point in the system, increased performance and flow is achieved through the expansion and contraction of exhaust sonics through the system. Result is a flow increase of nearly 10%! The outer chamber in the Powerbomb allows the air to expand, cool and ramp back up at a higher velocity. Additionally, the PowerBomb is a “pre-muffler” of sorts which helps to lower the bikes sound output by providing more sound absorbing surface area for the sound medium (exhaust gases). On some models, you can choose between a moto or supercross version. The supercross version is designed for more low to mid-range power where the moto version is focused in the mid to upper RPM range.
Powercore 4 041596
Regular price
$449.99
/
041596
When designing the PowerCore4, we looked at our top of the line products to deliver race-inspired performance at an economical price. The end result is a quality muffler with improved torque, increased horsepower and rugged durability all at a price that won’t break the bank.
-Overall increase in power and torque
-Durable stainless steel and aluminum construction
The Mini Powercore 4 is the best bang for your buck performance bolt on for your mini. Offered as a standard Mini Powercore 4, Closed Course Big Bore System or as a Spark Arrestor Version, the Mini Powercore 4 features a Hi-Flo stainless steel core and formed end caps, an aircraft grade aluminum canister and a durable stainless steel header. Its pounds lighter than stock and you will swear the motor has been bored and stroked with the first twist of the throttle.
Hi-Flo Core and End Cap
Pounds lighter than stock
FMF AUTO LICENSE PLATE FRAME 011232
Regular price
$9.99
/
011232
YAM TTR110'08-26 P-CORE 4 MFLR W/SS HEADER 044272
Regular price
$279.99
/
044272
The Mini Powercore 4 is the best bang for your buck performance bolt on for your mini. Offered as a standard Mini Powercore 4, Closed Course Big Bore System or as a Spark Arrestor Version, the Mini Powercore 4 features a Hi-Flo stainless steel core and formed end caps, an aircraft grade aluminum canister and a durable stainless steel header. Its pounds lighter than stock and you will swear the motor has been bored and stroked with the first twist of the throttle.
Hi-Flo Core and End Cap
Pounds lighter than stock
MegaBomb 044358
Regular price
$374.99
/
044358
HON CRF110F'19-27 P-CORE 4 S/A MFLR 041580
Regular price
$239.99
/
041580
The Mini Powercore 4 is the best bang for your buck performance bolt on for your mini. Offered as a standard Mini Powercore 4, Closed Course Big Bore System or as a Spark Arrestor Version, the Mini Powercore 4 features a Hi-Flo stainless steel core and formed end caps, an aircraft grade aluminum canister and a durable stainless steel header. Its pounds lighter than stock and you will swear the motor has been bored and stroked with the first twist of the throttle.
Hi-Flo Core and End Cap
Pounds lighter than stock
Turbinecore 2.1 024064
Regular price
$269.99
/
024064
Meet the WORLDS bestselling spark arrested exhaust, the TurbineCore 2.1 uses the exclusive "Turbine Dampening System". This top-notch product has well earned its U.S. Forest legal status. The straight through design of the spark arrestor canister and the performance flow stainless steel end cap ensures strength, durability and most importantly, track and trail proven unrestricted power and performance. The Turbinecore 2.1 is the #1 spark arrestor in the world!
-The Turbinecore 2.1 is the #1 spark arrestor in the world!
-Aluminum canister with stainless steel end cap
-Smooth power curve throughout the RPM range
-Engineered for today's tracks and trails
-Delivers a crisp, notable sound
-Complements performance of FMF header pipes, but fits stock
-Built In-House at FMF state of the art manufacturing facility in the USA
FMF POWERBOMB/POWERCORE YOUTH Standard Tear-OffsMultipack
Regular price
$14.00
Sale price
$10.00
Save $4.00
/
F-51012NOC20PK
•Get clear vision with a simple pull of a tab
•Adult offered in 20pk and 50pk
•Youth offered in 20pk
Fatty 024041
Regular price
$319.99
/
024041
With well over 35 years of racing experience behind it, the Fatty Gold Series pipe delivers race proven performance. The 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.
-More tractable power, improved throttle control
-Provides power gains throughout entire power band
-Carbon steel with a nickel plated finish for maximum durability
-FMF Racing’s Tru-Flo stamping process ensures a perfect fit and optimum performance.
-Can be used with FMF or stock silencer (unless noted)
-Our most popular 2-stroke pipe
-O-Rings Included
PowerBomb 041622
Regular price
$199.99
/
041622
The redesigned PowerBomb is a four-stroke header that incorporates FMF's patented PowerBomb module at a precise location in the initial stage of the header. By positioning this "Bomb" at a key point in the system, increased performance and flow is achieved through the expansion and contraction of exhaust sonics through the system. Result is a flow increase of nearly 10%! The outer chamber in the Powerbomb allows the air to expand, cool and ramp back up at a higher velocity.
Additionally, the PowerBomb is a "pre-muffler" of sorts which helps to lower the bikes sound output by providing more sound absorbing surface area for the sound medium (exhaust gases). On some models, you can choose between a moto or supercross version. The supercross version is designed for more low to mid-range power where the moto version is focused in the mid to upper RPM range.
Select your application below for more info
Factory Fatty Rev Pipe 022064
Regular price
$299.99
/
022064
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.
Fatty 024049
Regular price
$319.99
/
024049
With well over 35 years of racing experience behind it, the Fatty Gold Series pipe delivers race proven performance. The 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.
-More tractable power, improved throttle control
-Provides power gains throughout entire power band
-Carbon steel with a nickel plated finish for maximum durability
-FMF Racing’s Tru-Flo stamping process ensures a perfect fit and optimum performance.
-Can be used with FMF or stock silencer (unless noted)
-Our most popular 2-stroke pipe
-O-Rings Included
Gnarly 020110
Regular price
$339.99
/
020110
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 Big Bore 025313
Regular price
$299.99
/
025313
Recommended for Husqv/KTM 105cc built bikes and up
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 Blue Carbon End Cap
-Massive Power gains throughout the RPM range
-Huge weight savings over stock
-New RTS (Rapid Tuning System)
-Used by Star Racing Yamaha
-Includes removable sound insert (AMA compliant)
-Includes PowerFill Factory Packing
-FMF uses a proprietary blend of alloy grade titanium made specifically to our standards
-See Features Tab -> Fitment for header compatibility
Take the Yamaha YZ250 two stroke to the next level with the FMF Titanium PowerCore 2.1 Silencer. Designed for improved throttle response and smooth, controllable power throughout the RPM range, the PowerCore 2.1 features a lightweight titanium canister and end cap with a stainless-steel mid-pipe. A larger-diameter design allows for more packing material and longer packing life, while delivering a crisp, aggressive sound that two stroke riders expect. Made in the USA and pairs best with an FMF header pipe.
-The ultimate upgrade for two stroke silencers
-Improved throttle response
-Lightweight titanium canister
-Smooth power curve throughout the RPM range
-Large diameter canister for longer packing life
-Delivers a crisp, notable sound
-Used by Cody Webb
-Made in the USA
Stainless MegaBomb 045676
Regular price
$374.99
/
045676
This is used for a single sided exhaust system except part # 014553
ALUMINUM FACTORY 4.1 RCT SL (slip-on) Stainless Steel Rear End Cap 045472
Regular price
$499.99
/
045472
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 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 especially to our standards.
·The kit includes Stainless Steel End Cap and 3/16 Stainless Steel Rivets.
·Comes in four sizes 1.0”1.125”, 1.250" or 1.375”
STARS AND BARS 2 HAT
Regular price
$32.00
/
HO25T196911BLKOS
5 Panel Snapback
100% Poly
Embroidered Front Patch
Rope at Visor Seam
FMF Woven Label at Snap Closure
FMF MAKING TRACKS UMBRELLA (RED/YELLOW) 013911
Regular price
$29.99
/
013911
MORE MOTO TEE
Regular price
$37.00
/
FA25118916BLKS
100% Soft Spun Cotton S/S Tee
Soft Hand Plastisol Print
Premium Fit
Fatty 025297
Regular price
$329.99
/
025297
With well over 35 years of racing experience behind it, the Fatty Gold Series pipe delivers race proven performance. The 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.
-More tractable power, improved throttle control
-Provides power gains throughout entire power band
-Carbon steel with a nickel plated finish for maximum durability
-FMF Racing’s Tru-Flo stamping process ensures a perfect fit and optimum performance.
-Can be used with FMF or stock silencer (unless noted)
-Our most popular 2-stroke pipe
-O-Rings Included
RCT TI REPLACEMENT END CAP KIT 040642
Regular price
$59.99
/
040642
·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.
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 WINDSHIELD SHADE 011294
Regular price
$23.99
/
011294
🎁 FMF POWERCORE YOUTH Goggle - Mirror (100% off)
Regular price
$0.00
/
F-50500-MICOBLKMISILYOUTH
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TurbineCore 2 024081
Regular price
$229.99
/
024081
Our best selling Turbinecore 2 uses the exclusive "Turbine Dampening System". This top-notch product has well earned its U.S. Forest legal status. The straight through design of the spark arrestor canister and the performance flow stainless steel end cap ensures strength, durability and most importantly, track and trail proven unrestricted power. The Turbinecore 2 is the #1 spark arrestor in the world.
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
FACT-4.1 RCT REPLACEMENT SPIRAL RETAINING RING 040677