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$161.99
FMF Powercore 4 Muffler 433121
Dennis Kirk Part #: 433121
FMF Powercore 4 Muffler 433121: Manufacturer part # 043095 - New modular end cap allows easy tuning alterations. Standard Hi-Flo 2 inch end cap boosts all-around performance. Spark arrestor module adds off-road versatility. Computer designed and dyno tested for every 4-stroke application. Enhanced sonic evacuation delivers a higher flow of exhaust gases which increases power. A stainless steel mid-pipe mates to the computer-designed aluminum rear can for lightweight durability. Square or round (depending on the machine) perforated steel inner cores make for optimum flow, using hi-flo technology. FMFs exclusive cross-weave internal packing provides longevity and maximum sound dispersement. Elliptical aluminum can offers strategic sizing for superior performance. PowerCore 4 SA features a patented screen-type spark arrestor that is approved by the U.S.F.S. and does not interrupt exhaust flow so there's no performance loss. The PowerCore 4 SA systems strategic ports allow the sonics to evacuate more effectively with the computer-designed Performance Flow end cap. Finally, the PowerCore 4 SA system is the new power standard via square inner-core technology; big weight savings over stock. , Included Items:, (1) Muffler, (1) 8mm-1.25 x 20mm hex bolt, (1) Aluminum spacer. 043095
2 on Hand
More Info/Options for FMF Powercore 4 Muffler 433121
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$224.99
Muffler/Silencer w/o Spark Arrestor FMF Titanium 4 Muffler
Dennis Kirk Part #: 447187
Muffler/Silencer w/o Spark Arrestor FMF Titanium 4 Muffler: Manufacturer part # 040145 - A Titanium 4 Muffler is the final piece of a three-piece exhaust system that features the Titanium 4 Muffler mounted to an FMF titanium (or stainless steel) mid-pipe and an FMF titanium (or stainless steel) header system; sold separately. Up to 50 percent lighter than stock mufflers - made from military-grade titanium that is light and durable. Two lengths available - standard 14" unit offers the greatest power gains at the expense of a louder sound level - not the best choice for sound-sensitive places. Longer 17" unit delivers a bit less peak power, trading it for increased low-end throttle response and a more respectable reduced sound level, , An FMF mid pipe is REQUIRED to fit a Titanium 4 muffler properly (FMF header pipe is NOT required, but highly recommended over the stock unit), , Must use with FMF titanium or stainless steel midpipe , , Included items: , One silencer, One instruction sheet. 040145
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$314.99
FMF MegaBomb Titanium Header 432797
Dennis Kirk Part #: 432797
FMF MegaBomb Titanium Header 432797: Manufacturer part # 041232 - Get the ultimate power boost with improved bottom to mid-range power. Exclusive Ti-Metal construction. Produces the low-end of a longer header and the top-end of a short header. Less susceptible to damage than a long header. Effectively reduces sound output by as much as 1.5 dB. Runs well with sound-restricting mufflers. , INCLUDED ITEMS: One FMF 4-stroke header Hardware Kit Two exhaust springs. 041232
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$811.99
FMF Factory 4.1 Natural Titanium w/MegaBomb Header System 433038
Dennis Kirk Part #: 433038
FMF Factory 4.1 Natural Titanium w/MegaBomb Header System 433038: Manufacturer part # 045103 - The lightest system available. Boosts low-mid torque and offers a broader powerband with more over-rev. Patented chamber core for optimum performance. Engineered for compactness and centralized mass for improved handling. Exclusive mounting design. Easily serviced for re-packing. All systems and slip-ons have a titanium or carbon fiber muffler with titanium end cap; Titanium mufflers available with either natural or blue anodized finish. Full systems are complete with titanium PowerBomb header and midpipe, unless noted. Slip-on mufflers are availabe with a titanium or stainless steel midpipe. Customizable with performance tuning inserts and spark arrestor module. Meets AMA sound requirements on most models. 045103
1 on Hand
More Info/Options for FMF Factory 4.1 Natural Titanium w/MegaBomb Header System 433038
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$189.99
FMF 2 in. MegaMax 4-Stroke Muffler 447688
Dennis Kirk Part #: 447688
FMF 2 in. MegaMax 4-Stroke Muffler 447688: Manufacturer part # 040195 - Compatible with all 4-stroke bikes. System utilizes tuning discs to dial-in the exhaust to a specific application. Quiet Core Inserts mellow exhaust note is suited for todays sound sensitive riding areas. Elliptical aluminum canister shape provides exceptional performance throughout the powerband. Nickle-plated inlet is rugged and easy to maintain. Hardware kit includes mounting bracket, stainless steel spacers, shaped stinger tube and a stainless steel mounting strap for easy installation. Universal for a 2 in. midpipe.. 040195
Expected Soon
More Info/Options for FMF 2 in. MegaMax 4-Stroke Muffler 447688
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$315.99
FMF PowerCore 4 SA Muffler 432533
Dennis Kirk Part #: 432533
FMF PowerCore 4 SA Muffler 432533: Manufacturer part # 044158 - Patented screen-type Forest Service-approved spark arrester. Arrester does not hamper the exhaust flow so there is no performance loss. Strategic ports mean sonics evacuate more effectively with the computer-designed Performance Flow end cap. Improved power via square inner core technology. Sustantial weight savings over stock. An optional quiet core insert is available swparately, order part number 43-2778. , , INCLUDED ITEMS: , (1) Muffler w/mid-pipe, (1) 8x25mm Bolt, (1) Spacer, (1) Aluminum Reducer Sleeve . , NOTE: Modular muffler. 044158
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$491.95
FMF Slip-On Line Exhaust System w/Spark Arrestor 433130
Dennis Kirk Part #: 433130
FMF Slip-On Line Exhaust System w/Spark Arrestor 433130: Manufacturer part # ASS4SO1WTA - Oval-shaped can with a titanium outer sleeve. Outlet cap is made of titanium while perforated inner sleeve and inlet cap are made of high quality stainless steel. Flared or conical link pipe is made of stainless steel and welded to the muffler. Link pipe ?- stock header assembly joint is milled on a state-of-the-art CNC machine and secured by metal clamp and/or high-quality silicon-shielded tempered springs. Anti-seize lead-free copper paste is used to prevent seizing, corrosion and rusting of bolt and joint of the metal clamp made of stainless steel. Includes a lightweight, compact and high-temperature resistant carbon-fiber muffler clamp. Installed aluminum FIM MX 98 dB noise damper conforms to MX regulations. , NOTE: Includes spark arrestor. ASS4SO1WTA
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CLOSEOUT!
Was: $331.99
Now: $248.99
FMF Factory 4 Stainless Steel Slip-On Muffler 431923
Dennis Kirk Part #: 431923
FMF Factory 4 Stainless Steel Slip-On Muffler 431923: Manufacturer part # 045060 - Get all the performance of today's top factory motocross teams in a lightweight, stylish package from FMF. Hours of dyno testing and track time result in power gains averaging just under 20% for all applications. Factory 4 slip-on mufflers are developed from the successful Factory 4 system and are compact and perfect-fitting, centralizing and lowering the mass of the machine. Space-age internal packing for maximum packing life. Feature the exclusive oval-to-round canister. An FMF midpipe is required.. 045060
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More Info/Options for FMF Factory 4 Stainless Steel Slip-On Muffler 431923
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$314.99
FMF Titanium PowerCore - Natural Muffler 432549
Dennis Kirk Part #: 432549
FMF Titanium PowerCore - Natural Muffler 432549: Manufacturer part # 043109 - Why pass up a titanium muffler for less than the price of aluminum?. FMFs world class manufacturing process has created the perfect track pipe. Quality of production is on par with FMFs higher-end products such as the Factory 4.1 and the Ti Q performance exhausts. Features titanium construction and a 100dB sound level. Includes a removeable spark arrestor. Use with stock or FMF header. INCLUDED ITEMS: One powercore muffler.. 043109
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