• FMF Racing exhaust systems boost your performance with a lightweight yet durable design
   
• All FMF mufflers feature advanced sound dispersion so they'll never hear you coming
   
• See more applications in the Exhaust section
   
• Superior power and performance – horsepower improved throughout rpm range
   
• Mufflers feature exclusive proprietary Chamber Core technology; Factory Forward Engineering centralizes mass, improves handling
   
• Factory 4.1 systems feature a titanium muffler with titanium endcaps; Factory 4.1C systems feature a carbon fiber muffler with titanium end caps; available with stainless steel or titanium header
   
• Made from premium-quality American materials
   
• Standard Hi-Flo 2" end cap boosts all-around performance; optional smaller 1 3/4" end cap smoothes power delivery; spark arrestor module adds off-road versatility
   
• 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
   
• FMF"s exclusive cross-weave internal packing provides longevity and maximum sound dispersion
   
• Optional Quiet Core insert will provide a decrease in sound level if desired
   
• PowerCore 4 SA features a patented screen-type spark arrestor approved by the U.S. Forest Service; does not interrupt exhaust flow so there's no performance loss; strategic ports allow the sonics to evacuate more effectively with the computer-designed Performance Flow end cap
   
• PowerCore 4 SA also sets a power standard via square inner core technology; big weight savings over stock
   
• Advanced sound deadening baffles and chambers
   
• Internal spark arrestor and durable packing material
   
• Fits stock and PowerBomb header

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