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
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 STAINLESS SL (SLIP-ON) W/ CARBON END CAP 041618
Regular price
$674.99
/
041618
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
FACTORY 4.1 RCT STAINLESS SL (SLIP-ON) W/ CARBON END CAP 045680
Regular price
$674.99
/
045680
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
FACTORY 4.1 RCT STAINLESS SL (SLIP-ON) W/ CARBON END CAP 045679
Regular price
$674.99
/
045679
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
FACTORY 4.1 RCT STAINLESS SL (SLIP-ON) W/ CARBON END CAP 041602
Regular price
$674.99
/
041602
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
FACTORY 4.1 RCT STAINLESS SL (SLIP-ON) W/ CARBON END CAP 045632
Regular price
$674.99
/
045632
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
FACTORY 4.1 RCT STAINLESS SL (SLIP-ON) W/ CARBON END CAP 044443
Regular price
$649.99
/
044443
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
FACTORY 4.1 RCT STAINLESS SL (SLIP-ON) W/ CARBON END CAP 044453
Regular price
$649.99
/
044453
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
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
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
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 STAINLESS SL (SLIP-ON) W/ CARBON END CAP 041517
Regular price
$599.99
/
041517
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
FACTORY 4.1 RCT STAINLESS SL (SLIP-ON) W/ CARBON END CAP 044382
Regular price
$599.99
/
044382
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
FACTORY 4.1 RCT STAINLESS SL (SLIP-ON) W/ CARBON END CAP 042374
Regular price
$599.99
/
042374
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
Banshee Fatty 020145
Regular price
$589.99
/
020145
Our Chrome 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.
Q4 HEX S/A 045627
Regular price
$569.99
/
045627
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
FACTORY 4.1 RCT STAINLESS SL (SLIP-ON) W/ CARBON END CAP 045647
Regular price
$549.99
/
045647
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
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 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
FACTORY 4.1 RCT STAINLESS SL (SLIP-ON) W/ CARBON END CAP 045558
Regular price
$549.99
/
045558
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
Powercore 4 HEX 045626
Regular price
$549.99
/
045626
When designing the PowerCore 4 HEX, 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.
-Space Age internal packing material for maximum longevity.
-Internal shape of core uses Hi-Flo technology.
-Enhanced sonic evacuation provides for higher flow and increased power.
-Includes removable spark arrestor.
-See Features Tab -> Fitment for header compatibility
Titanium MegaBomb 045515
Regular price
$549.99
/
045515
Titanium MegaBomb 045499
Regular price
$549.99
/
045499
Titanium MegaBomb 045572
Regular price
$549.99
/
045572
KAW KLX110/L'02-26/SUZ DRZ110'03-05 S/S ANO TI MINI FACT-4.1 MFLR W/SS HDR 042381
Regular price
$509.99
/
042381
We take fun seriously so we built the Mini Factory 4.1. This is an all out performance exhaust for play bikes. With the Mini Factory 4.1, you will be the king of backyard motocross and look great doing it!
Superior power on stock and big bore motors
Choose between titanium and stainless steel header
Customize with tuning inserts and spark arrestor
Q4 HEX S/A 045702
Regular price
$499.99
/
045702
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 042402
Regular price
$499.99
/
042402
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 045685
Regular price
$499.99
/
045685
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
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.