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   Shop by Catalog > Western Power Sports Offroad > Exhaust > Exhaust
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  FMF 4.1 4-STROKE EXHAUST SYSTEM

 
 
  • 4.1 design is FMF's most progressive development in high performance exhaust system yet
  • Constructed of military grade titanium
  • Spark arrestor end cap available as an option
  • Includes a Powerbomb or Megabomb header, custom matched mid pipe, and titanium silencer
Note: See chart for additional information

 		 
Application Chart

Quantity Item / Item Code Price
FMF FACTORY 4.1 CRF150R '07-08 COMPLETE
79-2014		 $749.95
FMF FACTORY 4.1 CRF150R '07-08 COMPLETE W/ MEGABOM
79-2014M		 $799.95
FMF FACTORY 4.1 CRF150R '07-08 ANODIZED COMPLETE
79-2015		 $749.95
FMF FACTORY 4.1 CRF150R '07-08 ANODIZED COMPLETE W
79-2015M		 $799.95
FMF FACTORY 4.1 CRF250 '04-05 COMPLETE
79-2020		 $799.95
FMF FACTORY 4.1 CRF250 '04-05 ANOD COMPLETE
79-2021		 $799.95
FMF FACTORY 4.1 CRF450 '04 COMPLETE
79-2022		 $799.95
FMF FACTORY 4.1 ANOD CRF450 04 COMPLETE
79-2023		 $799.95
FMF FACTORY 4.1 NATURAL CRF450R '05-08
79-2026		 $799.95
FMF FACTORY 4.1 NATURAL CRF450R '05-08 W/ MEGABOMB
79-2026M		 $849.95
FMF FACTORY 4.1 ANOD BLUE CRF450R '05-08
79-2027		 $799.95
FMF FACTORY 4.1 ANOD BLUE CRF450R '05-08 W/ MEGABO
79-2027M		 $849.95
FMF FACTORY 4.1 CRF250R '06-08 COMPLETE
79-2036		 $799.95
FMF FACTORY 4.1 CRF250R '06-08 DUAL COMPLETE
79-2036D		 $999.95
FMF FACTORY 4.1 CRF250R '06-08 DUAL COMPLETE W/ ME
79-2036DM		 $1,099.95
FMF FACTORY 4.1 CRF250R '06-08 COMPLETE W/ MEGABOM
79-2036M		 $849.95
FMF FACTORY 4.1 CRF250R '06-08 ANOD COMPLETE BLUE
79-2037		 $799.95
FMF FACTORY 4.1 CRF250R '06-08 DUAL ANOD COMPLETE
79-2037D		 $999.95
FMF FACTORY 4.1 CRF250R '06-08 DUAL ANO COMPLETE W
79-2037DM		 $1,099.95
FMF FACTORY 4.1 CRF250R '06-08 ANODIZED COMPLETE W
79-2037M		 $849.95
FMF FACTORY 4.1 KX250F '04-08, RMZ250 '04-06 COMPL
79-2040		 $799.95
FMF FACTORY 4.1 KX250F '04-08, RMZ250 '04-06 COMP
79-2040M		 $849.95
FMF FACTORY 4.1 KX250F '04-08, RMZ250 '04-05 ANOD
79-2041		 $799.95
FMF FACTORY 4.1 KX250F '04-08 RMZ250 '04-06 COMP W
79-2041M		 $849.95
FMF FACTORY 4.1 KX450F '06-08 COMPLETE
79-2044		 $799.95
FMF FACTORY 4.1 KX450F '06-08 COMPLETE W/ MEGABOMB
79-2044M		 $849.95
FMF FACTORY 4.1 KX450F '06-08 ANOD BLUE COMPLETE
79-2045		 $799.95
FMF FACTORY 4.1 KX450F '06-08 ANODIZED COMPLETE W/
79-2045M		 $849.95
FMF FACT 4.1 KTM450/525 '04-06 COMPLETE W/PWRBOMB
79-2052		 $899.95
FMF FACTORY 4.1 KTM 450/525 COMPLETE W/ MEGABOMB
79-2052M		 $999.95
FMF FACT 4.1 KTM450/525 '04-05 ANOD BLUE
79-2053		 $899.95
FMF 4.1 250 SX-F '05-06 COMPLETE W/POWERBOMB
79-2054		 $799.95
FMF FACTORY 4.1 KTM 250 SX-F '05-06 COMPLETE W/ ME
79-2054M		 $899.95
FMF 4.1 250 SX-F '05-06 ANOD COMPLETE BLUE
79-2055		 $799.95
FMF 4.1 250 SX-F '05-06 ANOD BLUE COMPLETE W/ MEGA
79-2055M		 $899.95
FMF FACTORY 4.1 KTM 250 SX-F '07-08 COMPLETE
79-2056		 $799.95
FMF FACTORY 4.1 KTM 250 SX-F '07-08 COMPLETE W/ ME
79-2056M		 $899.95
FMF FACTORY 4.1 KTM 250 SX-F '07-08 ANODIZED COMPL
79-2057		 $799.95
FMF FACTORY 4.1 KTM 250 SX-F '07-08 ANO COMP W/ ME
79-2057M		 $899.95
FMF FACTORY 4.1 KTM 450 SX-F '07-08 COMPLETE W/ PO
79-2058		 $799.95
FMF FACTORY 4.1 KTM 450 SX-F '07-08 COMPLETE W/ ME
79-2058M		 $899.95
FMF FACTORY 4.1 KTM 450 SX-F '07-08 ANO COMP W/ PO
79-2059		 $799.95
FMF FACTORY 4.1 KTM 450 SX-F '07-08 ANO COMP W/ ME
79-2059M		 $899.95
FMF FACTORY 4.1 RMZ450 '05-07 COMPLETE W/POWERBOMB
79-2060		 $799.95
FMF FACTORY 4.1 RMZ450 '05-07 COMPLETE W/ MEGABOMB
79-2060M		 $849.95
FMF FACTORY 4.1 RMZ450 '05-07 ANO COMPLETE W/PWRBO
79-2061		 $799.95
FMF FACTORY 4.1 RMZ450 '05-07 ANODIZED COMPLETE W/
79-2061M		 $849.95
FMF FACTORY 4.1 RMZ250 '07-08 COMPLETE W/POWERBOMB
79-2062		 $799.95
FMF FACTORY 4.1 RMZ250 '07-08 COMPLETE W/ MEGABOMB
79-2062M		 $849.95
FMF FACTORY 4.1 RMZ250 '07-08 ANO COMPLETE W/POWER
79-2063		 $799.95
FMF FACTORY 4.1 RMZ250 '07-08 ANODIZED COMPLETE W/
79-2063M		 $849.95
FMF FACTORY 4.1 RMZ450 '08 COMPLETE W/ PWRBOMB
79-2068		 $799.95
FMF FACTORY 4.1 RMZ450 '08 COMPLETE W/ MEGABOMB
79-2068M		 $849.95
FMF FACTORY 4.1 RMZ450 '08 ANODIZED COMPLETE W/ PW
79-2069		 $799.95
FMF FACTORY 4.1 RMZ450 '08 ANODIZED COMPLETE W/ ME
79-2069M		 $849.95
FMF FACTORY 4.1 KLX450R '08 COMPLETE, NATURAL
79-2070		 $624.99
FMF FACTORY 4.1 KLX450R '08 COMPLETE, BLUE ANODIZE
79-2071		 $624.99
FMF FACT 4.1 KTM 450 XCRW '08 COMPLETE W/ PWRBOMB
79-2072		 $699.95
FMF FACT 4.1 KTM 450 XCRW '08 COMPLETE W/ MEGABOMB
79-2072M		 $899.95
FMF FACT 4.1 KTM 450 XCRW '08 ANODIZED COMPLETE W/
79-2073		 $699.95
FMF FACT 4.1 KTM 450 XCRW '08 ANODIZED COMPLETE W/
79-2073M		 $899.95
FMF FACT 4.1 KTM 530 XCRW '08 COMPLETE W/ PWRBOMB
79-2074		 $699.95
FMF FACT 4.1 KTM 530 XCRW '08 COMPLETE W/ MEGABOMB
79-2074M		 $899.95
FMF FACT 4.1 KTM 530 XCRW '08 ANODIZED COMPLETE W/
79-2075		 $699.95
FMF FACT 4.1 KTM 530 XCRW '08 ANODIZED COMPLETE W/
79-2075M		 $899.95
FMF FACT 4.1 YZ/WR250F '03-05 COMPLETE W/POWERBOMB
79-2080		 $799.95
FMF FACT 4.1 YZ/WR250F '03-05, ANO COMP W/PWRBOMB
79-2081		 $799.95
FMF FACT 4.1 YZ/WR450F '03-05 COMPLETE W/POWERBOMB
79-2082		 $799.95
FMF FACT 4.1 YZ/WR450F '03-05 ANO COMPLETE W/POWER
79-2083		 $799.95
FMF 4.1 YZ250F '06, WR250F '07-08 COMPLETE W/POWER
79-2084		 $799.95
FMF 4.1 YZ250F '06, WR250F '07-08 COMPLETE W/ MEGA
79-2084M		 $849.95
FMF TI 4.1 ANOD YZ250F '06, WR250F '07-08 COMPLETE
79-2085		 $799.95
FMF FACTORY 4.1 YZ250F '06 ANO COMPLETE W/ MEGABOM
79-2085M		 $849.95
FMF FACTORY 4.1 YZ450F '06 COMPLETE
79-2086		 $799.95
FMF FACTORY 4.1 YZ450F '06 COMPLETE W/ MEGABOMB
79-2086M		 $849.95
FMF FACTORY 4.1 YZ450F '06 ANOD COMPLETE BLUE
79-2087		 $799.95
FMF FACTORY 4.1 YZ450F '06 ANODIZED COMPLETE W/ ME
79-2087M		 $849.95
FMF FACTORY 4.1 YZ450F '07-08 COMPLETE W/ PWRBOMB
79-2088		 $799.95
FMF FACTORY 4.1 YZ450F '07-08 COMPLETE W/ MEGABOMB
79-2088M		 $849.95
FMF FACTORY 4.1 YZ450F '07-08 ANODIZED COMPLETE W/
79-2089		 $799.95
FMF FACTORY 4.1 YZ450F '07-08 ANODIZED COMPLETE W/
79-2089M		 $849.95
FMF FACTORY 4.1 YZ250F '07-08 COMPLETE W/ POWERBOM
79-2094		 $799.95
FMF FACTORY 4.1 YZ250F '07-08 COMPLETE W/ MEGABOMB
79-2094M		 $849.95
FMF FACTORY 4.1 YZ250F '07-08 ANODIZED COMPLETE W/
79-2095		 $799.95