1153 products
1153 products
ALUMINUM FACTORY 4.1 RCT SL (slip-on) Stainless Steel Rear End Cap 045472
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.
-Can be used with FMF or Stock OEM Header
Q4 044210
044210
FMF is the leader in high performance quiet technology and our Q4 is the next evolution in off road exhaust. The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available. With the Q4 you don’t need to hear the power, just feel the power!
- Developed over years of championship off-road racing
- Max Sound output 96dB; most models below 93dB
- Constructed from aircraft grade aluminum and high strength stainless steel
- Use with stock or FMF header
Q4 HEX S/A 044442
044442
FMF is the leader in high performance quiet technology and our Q4 HEX is the next evolution in off road exhaust. The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available. With the Q4 you don’t need to hear the power, just feel the power!
-Less sound equals more ground
-Meets USFS and FIM World Enduro sound regulations
-Power gains throughout the entire rpm range
-Spark arrestor included
-Pounds lighter than stock
-Rugged design for off-road endurance
-Only US manufacturer to offer dedicated quiet exhaust systems
-MADE IN THE USA
-See Features Tab -> Fitment for header compatibility
Q4 HEX S/A 044426
044426
FMF is the leader in high performance quiet technology and our Q4 HEX is the next evolution in off road exhaust. The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available. With the Q4 you don’t need to hear the power, just feel the power!
-Less sound equals more ground
-Meets USFS and FIM World Enduro sound regulations
-Power gains throughout the entire rpm range
-Spark arrestor included
-Pounds lighter than stock
-Rugged design for off-road endurance
-Only US manufacturer to offer dedicated quiet exhaust systems
-MADE IN THE USA
-See Features Tab -> Fitment for header compatibility
Q4 044195
044195
FMF is the leader in high performance quiet technology and our Q4 is the next evolution in off road exhaust. The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available. With the Q4 you don’t need to hear the power, just feel the power!
-Developed over years of championship off-road racing
-Max Sound output 96dB; most models below 93dB
-Constructed from aircraft grade aluminum and high strength stainless steel
-Use with FMF or Stock OEM Header
-Removable spark arrestor included
Q4 HEX S/A 045442
045442
FMF is the leader in high performance quiet technology and our Q4 HEX is the next evolution in off road exhaust. The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available. With the Q4 you don’t need to hear the power, just feel the power!
-Less sound equals more ground
-Meets USFS and FIM World Enduro sound regulations
-Power gains throughout the entire rpm range
-Spark arrestor included
-Pounds lighter than stock
-Rugged design for off-road endurance
-Only US manufacturer to offer dedicated quiet exhaust systems
-MADE IN THE USA
-See Features Tab -> Fitment for header compatibility
Q4 HEX S/A 042368
042368
FMF is the leader in high performance quiet technology and our Q4 HEX is the next evolution in off road exhaust. The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available. With the Q4 you don’t need to hear the power, just feel the power!
-Less sound equals more ground
-Meets USFS and FIM World Enduro sound regulations
-Power gains throughout the entire rpm range
-Spark arrestor included
-Pounds lighter than stock
-Rugged design for off-road endurance
-Only US manufacturer to offer dedicated quiet exhaust systems
-MADE IN THE USA
-See Features Tab -> Fitment for header compatibility
Q4 HEX S/A 042393
042393
FMF is the leader in high performance quiet technology and our Q4 HEX is the next evolution in off road exhaust. The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available. With the Q4 you don’t need to hear the power, just feel the power!
-Less sound equals more ground
-Meets USFS and FIM World Enduro sound regulations
-Power gains throughout the entire rpm range
-Spark arrestor included
-Pounds lighter than stock
-Rugged design for off-road endurance
-Only US manufacturer to offer dedicated quiet exhaust systems
-MADE IN THE USA
-See Features Tab -> Fitment for header compatibility
Q4 HEX S/A 042296
042296
FMF is the leader in high performance quiet technology and our Q4 HEX is the next evolution in off road exhaust. The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available. With the Q4 you don’t need to hear the power, just feel the power!
-Less sound equals more ground
-Meets USFS and FIM World Enduro sound regulations
-Power gains throughout the entire rpm range
-Spark arrestor included
-Pounds lighter than stock
-Rugged design for off-road endurance
-Only US manufacturer to offer dedicated quiet exhaust systems
-MADE IN THE USA
-See Features Tab -> Fitment for header compatibility
Q4 043377
043377
FMF is the leader in high performance quiet technology and our Q4 is the next evolution in off road exhaust. The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available. With the Q4 you don’t need to hear the power, just feel the power!
-Developed over years of championship off-road racing
-Max Sound output 96dB; most models below 93dB
-Constructed from aircraft grade aluminum and high strength stainless steel
-Use with FMF or Stock OEM Header
-Removable spark arrestor included
Q4 HEX S/A 042388
042388
FMF is the leader in high performance quiet technology and our Q4 HEX is the next evolution in off road exhaust. The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available. With the Q4 you don’t need to hear the power, just feel the power!
-Less sound equals more ground
-Meets USFS and FIM World Enduro sound regulations
-Power gains throughout the entire rpm range
-Spark arrestor included
-Pounds lighter than stock
-Rugged design for off-road endurance
-Only US manufacturer to offer dedicated quiet exhaust systems
-MADE IN THE USA
-See Features Tab -> Fitment for header compatibility
Q4 HEX S/A 045590
045590
FMF is the leader in high performance quiet technology and our Q4 HEX is the next evolution in off road exhaust. The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available. With the Q4 you don’t need to hear the power, just feel the power!
-Less sound equals more ground
-Meets USFS and FIM World Enduro sound regulations
-Power gains throughout the entire rpm range
-Spark arrestor included
-Pounds lighter than stock
-Rugged design for off-road endurance
-Only US manufacturer to offer dedicated quiet exhaust systems
-MADE IN THE USA
-See Features Tab -> Fitment for header compatibility
Q4 HEX S/A 045556
045556
FMF is the leader in high performance quiet technology and our Q4 HEX is the next evolution in off road exhaust. The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available. With the Q4 you don’t need to hear the power, just feel the power!
-Less sound equals more ground
-Meets USFS and FIM World Enduro sound regulations
-Power gains throughout the entire rpm range
-Spark arrestor included
-Pounds lighter than stock
-Rugged design for off-road endurance
-Only US manufacturer to offer dedicated quiet exhaust systems
-MADE IN THE USA
-See Features Tab -> Fitment for header compatibility
Q4 041597
041597
FMF is the leader in high performance quiet technology and our Q4 is the next evolution in off road exhaust. The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available. With the Q4 you don’t need to hear the power, just feel the power!
-Developed over years of championship off-road racing
-Max Sound output 96dB; most models below 93dB
-Constructed from aircraft grade aluminum and high strength stainless steel
-Use with FMF or Stock OEM Header
-Removable spark arrestor included
Q4 HEX S/A 041544
041544
FMF is the leader in high performance quiet technology and our Q4 HEX is the next evolution in off road exhaust. The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available. With the Q4 you don’t need to hear the power, just feel the power!
-Less sound equals more ground
-Meets USFS and FIM World Enduro sound regulations
-Power gains throughout the entire rpm range
-Spark arrestor included
-Pounds lighter than stock
-Rugged design for off-road endurance
-Only US manufacturer to offer dedicated quiet exhaust systems
-MADE IN THE USA
-See Features Tab -> Fitment for header compatibility
Q4 HEX S/A 041578
041578
FMF is the leader in high performance quiet technology and our Q4 HEX is the next evolution in off road exhaust. The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available. With the Q4 you don’t need to hear the power, just feel the power!
-Less sound equals more ground
-Meets USFS and FIM World Enduro sound regulations
-Power gains throughout the entire rpm range
-Spark arrestor included
-Pounds lighter than stock
-Rugged design for off-road endurance
-Only US manufacturer to offer dedicated quiet exhaust systems
-MADE IN THE USA
-See Features Tab -> Fitment for header compatibility
Q4 041287
041287
FMF is the leader in high performance quiet technology and our Q4 is the next evolution in off road exhaust. The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available. With the Q4 you don’t need to hear the power, just feel the power!
-Developed over years of championship off-road racing
-Max Sound output 96dB; most models below 93dB
-Constructed from aircraft grade aluminum and high strength stainless steel
-Use with FMF or Stock OEM Header
-Removable spark arrestor included
Q4 HEX S/A 045667
045667
FMF is the leader in high performance quiet technology and our Q4 HEX is the next evolution in off road exhaust. The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available. With the Q4 you don’t need to hear the power, just feel the power!
-Less sound equals more ground
-Meets USFS and FIM World Enduro sound regulations
-Power gains throughout the entire rpm range
-Spark arrestor included
-Pounds lighter than stock
-Rugged design for off-road endurance
-Only US manufacturer to offer dedicated quiet exhaust systems
-MADE IN THE USA
-See Features Tab -> Fitment for header compatibility
Titanium TurbineCore 2.1 024091
024091
Titanium TurbineCore 2.1 025340
025340
Titanium TurbineCore 2.1 025339
025339
SX Style MegaBomb Header 042408
042408
Titanium MegaBomb 045693
045693
SX Style MegaBomb Header 042400
042400
Titanium MegaBomb 045678
045678
Titanium MegaBomb 045671
045671
SX Style MegaBomb Header 042379
042379
KAWASAKI KX450F'19 TITANIUM SX MEGABOMB HEADER
Titanium MegaBomb 041599
041599
Titanium MegaBomb 045672
045672
Titanium MegaBomb 041607
041607
Stainless MegaBomb 045514
045514
This is used for a single sided exhaust system except part # 014553
Stainless MegaBomb 045498
045498
This is used for a single sided exhaust system except part # 014553
Titanium MegaBomb 042391
042391
KTM Stainless Megabomb 045640
045640
Stainless MegaBomb 045605
045605
This is used for a single sided exhaust system except part # 014553
Stainless MegaBomb 045581
045581
This is used for a single sided exhaust system except part # 014553
Stainless MegaBomb 045571
045571
This is used for a single sided exhaust system except part # 014553
Stainless MegaBomb 045391
045391
Titanium Megabomb Plus 045625
045625
YAM TTR110'08-26 S/S ANO TI MINI FACT-4.1 MFLR W/SS HDR 044468
044468
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 Titanium 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.
-Can be used with FMF or Stock OEM Header
TurbineCore 2 020360
020360
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.
Select your application below for more info
Titanium Powercore 2.1 025295
025295
Take your Austrian 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 Factory KTM / Husqvarna
-Made in the USA
Titanium Powercore 2.1 025333
025333
Titanium Powercore 2.1 025326
025326