FMF Dirt Bike 4 Stroke Mufflers
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- Qty in Cart
- Quantity
- Price
- Subtotal
-
FMF Factory 4.1 RCT Muffler - Aluminum 042290
FMF
$599.99If you're serious about extracting maximum power while reducing unsprung weight, the FMF Factory 4.1 RCT delivers measurable gains across the entire RPM band without compromise. The Resonance Chamber Technology™ and optimized mass centralization give you...18211391- SKU:
- 18211391
- Availability:
- Ships Same Business Day
- Weight:
- 8.83 LBS
- PIPE MATERIAL:
- STAINLESS STEEL
- END CAP MATERIAL:
- CARBON FIBER
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- UNITS:
- EACH
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- RAW
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
$599.99 -
FMF Factory 4.1 RCT Muffler - Aluminum 042291
FMF
$599.99If you're serious about extracting maximum power from your engine while reducing weight and minimizing crash vulnerability, the FMF Factory 4.1 RCT delivers measurable gains across the entire RPM range. By centralizing mass through Factory Forward...18211392- SKU:
- 18211392
- Availability:
- Ships Same Business Day
- Weight:
- 8.72 LBS
- PIPE MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- RAW
- MUFFLER MATERIAL:
- ALUMINUM
- END CAP MATERIAL:
- CARBON FIBER
- UNITS:
- EACH
$599.99 -
FMF Q4 Muffler 043380
FMF
$449.99The FMF Q4 Muffler delivers the optimal balance of aggressive sound and real-world performance gains by reducing back pressure while maintaining street legality. If you're running a high-revving engine that demands efficient exhaust flow without...18212045- SKU:
- 18212045
- Availability:
- Ships Same Business Day
- Weight:
- 7.15 LBS
- END CAP STYLE:
- SLASH-CUT
- PRODUCT NAME:
- MUFFLER
- MATERIAL:
- ALUMINUM
- MODEL:
- Q4 HEX
- RIDING STYLE:
- OFF-ROAD
- END CAP MATERIAL:
- STAINLESS STEEL
- TYPE:
- SLIP-ON
- UNITS:
- EACH
$449.99 -
FMF Factory 4.1 RCT Muffler - Aluminum 044464
FMF
$674.99If you're serious about extracting maximum power from your engine while reducing unsprung weight, the FMF Factory 4.1 RCT Muffler delivers measurable gains across the entire RPM range without compromise. By centralizing mass closer to the motor through...18212012- SKU:
- 18212012
- Availability:
- Ships Same Business Day
- Weight:
- 8.40 LBS
- END CAP MATERIAL:
- CARBON FIBER
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- RAW
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- UNITS:
- EACH
- PRODUCT NAME:
- MUFFLER
- MUFFLER MATERIAL:
- ALUMINUM
- PIPE MATERIAL:
- STAINLESS STEEL
$674.99 -
FMF Factory 4.1 RCT Muffler - Anodized Titanium 044466
FMF
$799.99If you're serious about extracting maximum power from your machine while minimizing unsprung weight, the FMF Factory 4.1 RCT is engineered to deliver across the entire RPM band. Its shorter, centralized design reduces crash vulnerability and lowers your...18212013- SKU:
- 18212013
- Availability:
- Ships Same Business Day
- Weight:
- 8.40 LBS
- END CAP MATERIAL:
- CARBON FIBER
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- ANODIZED BLUE
- PIPE MATERIAL:
- TITANIUM
- TYPE:
- SLIP-ON
- UNITS:
- EACH
- MUFFLER MATERIAL:
- TITANIUM
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- MUFFLER
$799.99 -
FMF Factory 4.1 Muffler 042394
FMF
$599.99The FMF Factory 4.1 Muffler delivers a tuned exhaust note that doesn't sacrifice performance—optimized flow characteristics reduce backpressure while maintaining street-legal sound levels. Whether you're maximizing horsepower on the dyno or simply want a...18212035- SKU:
- 18212035
- Availability:
- Ships Same Business Day
- Weight:
- 7.68 LBS
- PRODUCT NAME:
- MUFFLER
- END CAP STYLE:
- CONICAL
- TYPE:
- SLIP-ON
- UNITS:
- EACH
- COLOR/FINISH:
- SILVER
- MODEL:
- FACTORY 4.1 RCT
- RIDING STYLE:
- OFF-ROAD
- END CAP COLOR/FINISH:
- BLACK
- END CAP MATERIAL:
- CARBON FIBER
- MATERIAL:
- ALUMINUM
$599.99 -
FMF Factory 4.1 Muffler 042396
FMF
$749.99The FMF Factory 4.1 Muffler delivers the performance exhaust flow your engine demands while maintaining street-legal sound levels. This is the choice of professional racers and serious enthusiasts who refuse to compromise between power gains and...18212036- SKU:
- 18212036
- Availability:
- Ships Same Business Day
- Weight:
- 6.70 LBS
- COLOR/FINISH:
- ANODIZED
- MODEL:
- FACTORY 4.1 RCT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- END CAP MATERIAL:
- CARBON FIBER
- END CAP STYLE:
- CONICAL
- PRODUCT NAME:
- MUFFLER
- UNITS:
- EACH
- COLOR/FINISH:
- BLUE
- END CAP COLOR/FINISH:
- SILVER
- MATERIAL:
- TITANIUM
$749.99 -
FMF Powercore 4 Muffler 042392
FMF
$399.99The FMF Powercore 4 Muffler delivers the performance exhaust solution you need when stock silencers are holding back your engine's potential. This proven design reduces backpressure while maintaining streetable sound levels, giving you measurable...18212038- SKU:
- 18212038
- Availability:
- Ships Same Business Day
- Weight:
- 6.60 LBS
- MUFFLER MATERIAL:
- ALUMINUM
- UNITS:
- EACH
- PIPE MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- POWERCORE 4
$399.99 -
FMF Factory 4.1 Muffler 041602
FMF
$674.99The FMF Factory 4.1 Muffler delivers race-proven exhaust flow with minimal back pressure, giving you measurable gains in horsepower and throttle response. Built with premium materials and precision engineering, this bolt-on muffler is designed for riders...18212043- SKU:
- 18212043
- Availability:
- Ships Same Business Day
- Weight:
- 7.50 LBS
- END CAP MATERIAL:
- CARBON FIBER
- MODEL:
- FACTORY 4.1
- PRODUCT NAME:
- MUFFLER
- UNITS:
- EACH
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
$674.99 -
FMF Powercore 4 with Spark Arrestor 043376
FMF
$399.99If you're running a high-performance engine, your exhaust system directly impacts how much power and torque you can extract. The FMF Powercore 4 delivers measurable gains through optimized flow dynamics and advanced internal packing, while the included...18212016- SKU:
- 18212016
- Availability:
- Ships Same Business Day
- Weight:
- 7.10 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MUFFLER MATERIAL:
- ALUMINUM
- PIPE MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- BASE COLOR:
- SILVER
- UNITS:
- EACH
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- POWERCORE 4
$399.99 -
FMF Q4 Muffler 043377
FMF
$449.99If you're running off-road or track applications where exhaust noise and backpressure directly impact performance, the FMF Q4 delivers championship-proven silencing without sacrificing flow. Engineered through years of competitive racing, this muffler...18212017- SKU:
- 18212017
- Availability:
- Ships Same Business Day
- Weight:
- 7.00 LBS
- END CAP STYLE:
- CONICAL
- MODEL:
- Q4
- MUFFLER MATERIAL:
- ALUMINUM
- UNITS:
- EACH
- PIPE MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- BASE COLOR:
- SILVER
- END CAP MATERIAL:
- STAINLESS STEEL
- MUFFLER COLOR/FINISH:
- RAW
$449.99 -
FMF Factory 4.1 Muffler 041592
FMF
$299.99If weight and power are your priorities, the FMF Factory 4.1 Muffler delivers both without compromise. The exclusive Chamber Core technology optimizes exhaust flow across the entire RPM range while keeping rotational mass to a minimum—critical for...18212018- SKU:
- 18212018
- Availability:
- Ships Same Business Day
- Weight:
- 2.66 LBS
- MODEL:
- FACTORY 4.1
- TYPE:
- SLIP-ON
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- END CAP MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
$299.99 -
FMF Factory 4.1 Muffler 041593
FMF
$349.99If you're serious about extracting maximum power from your machine while cutting parasitic weight, the FMF Factory 4.1 Muffler delivers measurable gains across the entire RPM band—without compromise. This is titanium exhaust engineering built on real...18212019- SKU:
- 18212019
- Availability:
- Ships Same Business Day
- Weight:
- 2.58 LBS
- END CAP MATERIAL:
- STAINLESS STEEL
- TYPE:
- SLIP-ON
- UNITS:
- EACH
- MATERIAL:
- TITANIUM
- MODEL:
- FACTORY 4.1
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
$349.99 -
FMF Factory 4.1 Muffler 041595
FMF
$349.99If you're serious about extracting maximum power from your bike while shedding unnecessary weight, the FMF Factory 4.1 Muffler delivers measurable gains across the entire RPM band. Factory Forward Engineering's proprietary Chamber Core technology...18212021- SKU:
- 18212021
- Availability:
- Ships Same Business Day
- Weight:
- 3.14 LBS
- COLOR/FINISH:
- TITANIUM
- MUFFLER MATERIAL:
- TITANIUM
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- END CAP MATERIAL:
- STAINLESS STEEL
- COLOR/FINISH:
- ANODIZED
- TYPE:
- SLIP-ON
- MODEL:
- FACTORY 4.1
- UNITS:
- EACH
$349.99 -
FMF Factory 4.1 Muffler 042383
FMF
$349.99If you're serious about extracting maximum power from your bike while shedding unnecessary weight, the FMF Factory 4.1 delivers measurable gains across the entire RPM band. Built from premium American titanium and engineered with exclusive Chamber Core...18212023- SKU:
- 18212023
- Availability:
- Ships Same Business Day
- Weight:
- 3.57 LBS
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- FACTORY 4.1
- MUFFLER MATERIAL:
- TITANIUM
- UNITS:
- EACH
- END CAP MATERIAL:
- STAINLESS STEEL
- TYPE:
- SLIP-ON
$349.99 -
FMF Powercore 4 Muffler 041596
FMF
$399.99The FMF Powercore 4 Muffler delivers measurable gains in power and torque while maintaining durability through punishing riding conditions. Built with premium stainless steel and aluminum construction, this muffler combines lightweight design with...18212026- SKU:
- 18212026
- Availability:
- Ships Same Business Day
- Weight:
- 6.30 LBS
- BASE COLOR:
- SILVER
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- POWERCORE 4
- TYPE:
- SLIP-ON
- END CAP STYLE:
- CONICAL
- MUFFLER MATERIAL:
- ALUMINUM
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$399.99 -
FMF Q4 Muffler 042393
FMF
$449.99The FMF Q4 Muffler delivers competition-proven exhaust flow optimization without sacrificing street-legal sound levels, making it the ideal choice for riders who demand both performance and practicality. By reducing backpressure while maintaining a...18212039- SKU:
- 18212039
- Availability:
- Ships Same Business Day
- Weight:
- 25.00 LBS
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- Q4 HEX
- TYPE:
- SLIP-ON
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- ALUMINUM
- UNITS:
- EACH
- END CAP STYLE:
- SLASH-CUT
$449.99 -
FMF Powercore 4 Muffler 043379
FMF
$399.99The FMF Powercore 4 Muffler delivers the exhaust scavenging efficiency and low-end torque response that serious riders demand, without sacrificing street legality or reliability. Its proven internal core design maximizes flow while maintaining effective...18212040- SKU:
- 18212040
- Availability:
- Ships Same Business Day
- Weight:
- 7.30 LBS
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- POWERCORE 4
- TYPE:
- SLIP-ON
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MUFFLER MATERIAL:
- ALUMINUM
- PIPE MATERIAL:
- STAINLESS STEEL
$399.99 -
FMF Q4 Muffler 041597
FMF
$449.99If you're running serious off-road miles, exhaust noise and premature packing degradation will compromise both your riding experience and your bike's longevity. The FMF Q4 Muffler delivers championship-proven sound suppression through a twin-stage core...18212029- SKU:
- 18212029
- Availability:
- Ships Same Business Day
- Weight:
- 6.20 LBS
- PRODUCT NAME:
- MUFFLER
- MODEL:
- Q4
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
$449.99 -
FMF PowerCore 4 HEX Muffler 041586
FMF
$399.99The FMF PowerCore 4 HEX delivers measurable gains in power and torque while maintaining the durability you need for repeated heat cycles and aggressive riding conditions. Its Hi-Flo internal core geometry reduces backpressure, allowing your engine to...18113799- SKU:
- 18113799
- Availability:
- Ships Same Business Day
- Weight:
- 3.10 LBS
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- MUFFLER COLOR/FINISH:
- RAW
- MUFFLER MATERIAL:
- ALUMINUM
- END CAP MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- MODEL:
- POWERCORE 4 HEX
- TYPE:
- SLIP-ON
- UNITS:
- EACH
$399.99
