The science behind the Megabomb header may be our greatest engineering accomplishment to date. You can bolt on a Megabomb with an existing FMF Racing slip on for as much as a 3hp boost, plus the Megabomb actually reduces noises levels by as much as 1.5dB. The Megabomb technology is revolved to produce more low end to mid range gains as well as broadening out the mid to top end power gains over stock. The Megabomb is best used for Motocross/Supercross and GNCC style trails. Used by Factory Teams, the Megabomb is the next level technology you can have today.

  • Produces long header torque and short header over-rev
  • Reduces sound output as much as 1.5dB
  • Increases output from stock motor as much as 3hp
  • Made from premium American TiMetal material

The redesigned PowerBomb is a four-stroke header that incorporates FMF’s patented PowerBomb module at a precise location in the initial stage of the header. By positioning this “Bomb” at a key point in the system, increased performance and flow is achieved through the expansion and contraction of exhaust sonics through the system. Result is a flow increase of nearly 10%! The outer chamber in the Powerbomb allows the air to expand, cool and ramp back up at a higher velocity. Additionally, the PowerBomb is a “pre-muffler” of sorts which helps to lower the bikes sound output by providing more sound absorbing surface area for the sound medium (exhaust gases). On some models, you can choose between a moto or supercross version. The supercross version is designed for more low to mid-range power where the moto version is focused in the mid to upper RPM range. 

Image Description Item Code Online Stock Price Order
FMF Header Pipes FMF-040021 I Powerbomb S/S XR650R 00-05 Header FMF [] FMF-040021 Sold Out $569.00 Enquire
FMF Header Pipes FMF-040038 Powerbomb S/S DRZ400 00-07 400SM 05-17 Header FMF [] FMF-040038 Sold Out $499.00 Enquire
FMF Header Pipes FMF-040073 I Powerbomb S/S YZ250F 01-06 Header WR250F 01-13 FMF [] FMF-040073 Sold Out $399.00 Enquire
FMF Header Pipes FMF-040074 Powerbomb Raptor 660 Header Pipe FMF [A] FMF-040074 Available $559.00 + Add to Cart
FMF Header Pipes FMF-040674 *Carbon 2 Piece Heatshield YZ250F/450F [A] FMF-040674 Available $229.50 + Add to Cart
FMF Header Pipes FMF-040675 *Carbon 2 Piece Heatshield KTM/YZF/KXF etc [A] FMF-040675 Available $199.95 + Add to Cart
FMF Header Pipes FMF-041082 I S/S P-Bomb CRF450 04-08 CRF450X 12-17 FMF Header [] FMF-041082 Sold Out $421.80 Enquire
FMF Header Pipes FMF-041343 *Powerbomb S/S CRF450R 09-10 FMF Header [A] FMF-041343 Available Was $399.00
Now $320.81 (Save 20%)
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FMF Header Pipes FMF-041427 *Megabomb S/S CRF250R 06-09 FMF Header [A] FMF-041427 Available Was $549.00
Now $477.57 (Save 13%)
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FMF Header Pipes FMF-041428 *Megabomb S/S CRF250R 10-13 Header FMF [A] FMF-041428 Available Was $549.00
Now $478.71 (Save 13%)
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FMF Header Pipes FMF-041429 Megabomb S/S CRF450R 04-08 CRF450X 12-17 Header FMF [] FMF-041429 Sold Out $549.00 Enquire
FMF Header Pipes FMF-041431 Megabomb S/S CRF250X 04-09/ 12-17 FMF Header [A] FMF-041431 Available $549.00 + Add to Cart
FMF Header Pipes FMF-041457 *Powerbomb S/S CRF450R 11-12 FMF Header [A] FMF-041457 Available Was $399.00
Now $318.50 (Save 20%)
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FMF Header Pipes FMF-041483 Powerbomb S/S CRF230R 03-17 FMF Header [] FMF-041483 Sold Out $499.00 Enquire
FMF Header Pipes FMF-041519 Megabomb S/S CRF250R 14-17 FMF Header [] FMF-041519 Sold Out $559.00 Enquire
FMF Header Pipes FMF-041520 I Megabomb Ti CRF250R 14-17 FMF Header [] FMF-041520 Sold Out $689.00 Enquire
FMF Header Pipes FMF-041538 Megabomb S/S CRF450R 2015-16 FMF Header [A] FMF-041538 Available $559.00 + Add to Cart
FMF Header Pipes FMF-041553 Megabomb S/S CRF450R/RX 2017- 18 FMF Header [] FMF-041553 Sold Out $698.00 Enquire
FMF Header Pipes FMF-041554 I Megabomb Ti CRF450R/RX 2017- 18 FMF Header [] FMF-041554 Sold Out $898.00 Enquire
FMF Header Pipes FMF-041555 !Megabomb S/S CRF450R 2017-19 use with Single Muffler ONLY [] FMF-041555 Sold Out $559.99 Enquire
FMF Header Pipes FMF-041566 !Megabomb S/S CRF250L/Rally 17-18 FMF [] FMF-041566 Sold Out $569.00 Enquire
FMF Header Pipes FMF-041572 !Powerbomb Ti CRF250R 2018-19 FMF Header [] FMF-041572 Sold Out $1,098.00 Enquire
FMF Header Pipes FMF-042094 Powerbomb S/S KX450F 06-11 FMF header [] FMF-042094 Sold Out $419.00 Enquire
FMF Header Pipes FMF-042131 Powerbomb S/S KLX450R 08/09 FMF header [C] FMF-042131 Available $419.00 + Add to Cart
FMF Header Pipes FMF-042179 Powerbomb S/S KX250F 09-16 Header FMF [] FMF-042179 Sold Out $399.00 Enquire
FMF Header Pipes FMF-042181 *Megabomb Ti KX250F 09-16 FMF Header [A] FMF-042181 Available Was $699.00
Now $642.93 (Save 8%)
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FMF Header Pipes FMF-042249 Megabomb S/S KX250F 09-16 FMF Header [A] FMF-042249 Available $549.00 + Add to Cart
FMF Header Pipes FMF-042306 Powerbomb Header KLX140 08-20 FMF S/S [] FMF-042306 Sold Out $349.00 Enquire
FMF Header Pipes FMF-042317 I Powerbomb S/S KLR650 08-18 Header FMF [] FMF-042317 Sold Out $399.00 Enquire
FMF Header Pipes FMF-042337 Powerbomb S/S KX450F 16-18 Header FMF [] FMF-042337 Sold Out $399.95 Enquire
FMF Header Pipes FMF-042338 *Megabomb S/S KX450F 16-18 Header FMF [A] FMF-042338 Available $549.00 + Add to Cart
FMF Header Pipes FMF-042342 *Powerbomb S/S KX250F 2017-19 FMF Header [A] FMF-042342 Available $399.00 + Add to Cart
FMF Header Pipes FMF-042343 *Megabomb S/S KX250F 2017-19 FMF Header [A] FMF-042343 Available Was $549.00
Now $481.24 (Save 12%)
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FMF Header Pipes FMF-042344 I Megabomb Ti KX250F 2017-19 FMF Header [] FMF-042344 Sold Out $699.00 Enquire
FMF Header Pipes FMF-042364 !Powerbomb S/S KX450F 2019/20 FMF Header [] FMF-042364 Sold Out $419.00 Enquire
FMF Header Pipes FMF-042365 !Megabomb S/S KX450F 2019/20 FMF Header [] FMF-042365 Sold Out $549.00 Enquire
FMF Header Pipes FMF-042366 I Megabomb Ti KX450F 2019/20 FMF Header [] FMF-042366 Sold Out $699.00 Enquire
FMF Header Pipes FMF-043137 I Powerbomb S/S RMZ250 07-09 Header FMF [] FMF-043137 Sold Out $399.00 Enquire
FMF Header Pipes FMF-043209 I Powerbomb LTZ400 2003-14 KFX400 2003-06 Header Indent [A] FMF-043209 Available $399.00 + Add to Cart
FMF Header Pipes FMF-043285 I Megabomb S/S RMZ250 07-09 Header FMF [] FMF-043285 Sold Out $549.00 Enquire
FMF Header Pipes FMF-043289 Powerbomb S/S DR650SE 97-17 Header FMF [] FMF-043289 Sold Out $421.80 Enquire
FMF Header Pipes FMF-043307 Poweromb S/S RMZ450 11-19 FMF Header [] FMF-043307 Sold Out $399.00 Enquire
FMF Header Pipes FMF-043309 Megabomb S/S RMZ450 11-19 RMX450Z 2017 FMF Header [A] FMF-043309 Available $549.00 + Add to Cart
FMF Header Pipes FMF-043310 !Megabomb Ti RMZ450 11-19 RMX450Z 2017 FMF Header [] FMF-043310 Sold Out $689.00 Enquire
FMF Header Pipes FMF-043332 Powerbomb S/S RMZ250 13-17 FMF Header [] FMF-043332 Sold Out $399.00 Enquire
FMF Header Pipes FMF-043339 Powerbomb S/S RMZ250 13-18 FMF Header [] FMF-043339 Sold Out $399.00 Enquire
FMF Header Pipes FMF-043340 Megabomb S/S RMZ250 13-18 FMF Header [] FMF-043340 Sold Out $549.00 Enquire
FMF Header Pipes FMF-043368 Megabomb S/S RMZ250 2019 FMF Header [] FMF-043368 Sold Out $549.00 Enquire
FMF Header Pipes FMF-043369 !Megabomb Ti RMZ250 2019 FMF Header [] FMF-043369 Sold Out $689.00 Enquire
FMF Header Pipes FMF-044136 I Powercore 4 TTR125 00-17 With S/S Header FMF [] FMF-044136 Sold Out $399.00 Enquire
FMF Header Pipes FMF-044156 I Powercore 4 TTR50 06-16 W/ S/S Header [] FMF-044156 Sold Out $399.00 Enquire
FMF Header Pipes FMF-044225 Powerbomb S/S YZ450F 07-09 WR450F 07-15 FMF Header [] FMF-044225 Sold Out $399.00 Enquire
FMF Header Pipes FMF-044244 Powerbomb S/S YZ250F 07-09 FMF Header [] FMF-044244 Sold Out $439.00 Enquire
FMF Header Pipes FMF-044314 Powerbomb S/S YZ250F 10-13 FMF Header [] FMF-044314 Sold Out $399.00 Enquire
FMF Header Pipes FMF-044352 *I Megabomb S/S YZ250F 10-13 Header FMF [A] FMF-044352 Available $549.00 + Add to Cart
FMF Header Pipes FMF-044354 *Megabomb S/S YZ450F 10-13 HEADER FMF [A] FMF-044354 Available Was $699.00
Now $605.67 (Save 13%)
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FMF Header Pipes FMF-044356 I Megabomb S/S WR250R 08-19 WR250X 08-15 FMF Header [] FMF-044356 Sold Out $549.00 Enquire
FMF Header Pipes FMF-044402 Megabomb S/S YZ450F 14-17 WR450F 17-18/YZ450FX 17 [] FMF-044402 Sold Out $699.00 Enquire
FMF Header Pipes FMF-044403 I Megabomb Ti YZ450F 14-17 WR450F 16-18 YZ450FX 16 FMF [] FMF-044403 Sold Out $899.00 Enquire
FMF Header Pipes FMF-044421 MEGABOMB S/S YZ250F 14-18 YZ250FX 15-19 HEADER FMF [] FMF-044421 Sold Out $699.00 Enquire
FMF Header Pipes FMF-044432 I Powerbomb Raptor 700 15-17 Header FMF [] FMF-044432 Sold Out $399.00 Enquire
FMF Header Pipes FMF-044439 Megabomb S/S YZ450F 2018-19 Header FMF [A] FMF-044439 Available $759.00 + Add to Cart
FMF Header Pipes FMF-044440 *Megabomb Ti YZ450F 2018-19 Header FMF [A] FMF-044440 Available $999.95 + Add to Cart
FMF Header Pipes FMF-044449 !Megabomb S/S YZ250F 2019-20 Header FMF [] FMF-044449 Sold Out $759.00 Enquire
FMF Header Pipes FMF-044450 !Megabomb Ti YZ450F 2019-20 Header FMF [] FMF-044450 Sold Out $999.95 Enquire
FMF Header Pipes FMF-045139 *Megabomb Ti 250SXF 05-06 XCF/XCFW 07 [A] FMF-045139 Available Was $499.00
Now $320.74 (Save 36%)
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FMF Header Pipes FMF-045212 *S/S HDR USE W/FMF P/BOMB M-PIPE KTM 450 EXCR/XCRW [A] FMF-045212 Available Was $159.00
Now $95.83 (Save 40%)
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FMF Header Pipes FMF-045358 *Powerbomb S/S Husqvarna TC25 10-11 FMF Header [A] FMF-045358 Available Was $339.00
Now $255.94 (Save 25%)
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FMF Header Pipes FMF-045364 I Powerbomb S/S 350SXF 11-12 XCF 11, EXCF 12-15 FMF Header [] FMF-045364 Sold Out $699.00 Enquire
FMF Header Pipes FMF-045365 Megabomb S/S 350SXF 11-12 FE250/350 14-16 FMF Header [] FMF-045365 Sold Out $849.00 Enquire
FMF Header Pipes FMF-045456 I Powerbomb KTM450 XC-W 12-16 W/Mid Pipe FMF [] FMF-045456 Sold Out $699.00 Enquire
FMF Header Pipes FMF-045466 Megabomb S/S 500EXC 12-16 w/Mid Pipe [] FMF-045466 Sold Out $849.00 Enquire
FMF Header Pipes FMF-045485 *Megabomb S/S 450SXF 12-15 XCF 13-15 Factory Edition 2014 [A] FMF-045485 Available $849.00 + Add to Cart
FMF Header Pipes FMF-045514 *Megabomb S/S 350SX-F 2013-15 XC-F 13-15 KTM Header [A] FMF-045514 Available Was $849.00
Now $783.45 (Save 8%)
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FMF Header Pipes FMF-045520 *Powerbomb S/S BETA 350 10-15 RR/RS 350 [A] FMF-045520 Available $439.00 + Add to Cart
FMF Header Pipes FMF-045592 Megabomb Ti 450SXF 16-18 FC450 16-17 FMF HEADER [A] FMF-045592 Available $1,099.00 + Add to Cart
FMF Header Pipes FMF-045604 *Megabomb S/S 250SXF 15-17 XCF 15-17 M/Bomb FMF Header [] FMF-045604 Sold Out $950.00 Enquire
FMF Header Pipes FMF-045605 Megabomb S/S 450SXF 15-18 FMF Header w/Mid Pipe [A] FMF-045605 Available $950.00 + Add to Cart
FMF Header Pipes FMF-045606 Megabomb S/S 350SXF 16-17 FMF Header [A] FMF-045606 Available $950.00 + Add to Cart
FMF Header Pipes FMF-045607 *Megabomb Ti 350SXF 16-17 FMF Header [A] FMF-045607 Available $1,100.00 + Add to Cart
FMF Header Pipes FMF-045610 I Megabomb Ti 250SXF 16-18 XCF 2016 M/Bomb Header FMF [] FMF-045610 Sold Out $1,099.00 Enquire
FMF Header Pipes FMF-045611 *SX STYLE Megabomb S/S 350SXF Header Only Must Use FMF Mid [A] FMF-045611 Available $349.00 + Add to Cart
FMF Header Pipes FMF-045612 I Megamomb S/S FE350 2017 FMF 250SXF 17-18 SX Style Header [] FMF-045612 Sold Out $959.00 Enquire
FMF Header Pipes FMF-045620 !Megabomb Plus S/S 250SXF FC250 19 pipe due 07/19 [] FMF-045620 Sold Out $599.00 Enquire
FMF Header Pipes FMF-045621 I Megabomb Plus Ti 250SXF FC250 19 Header pipe due 07/19 [] FMF-045621 Sold Out $799.00 Enquire
FMF Header Pipes FMF-045622 !Megabomb Plus S/S 350SXF FC350 19 Header pipe due 07/19 [] FMF-045622 Sold Out $599.00 Enquire
FMF Header Pipes FMF-045623 I Megabomb Plus Ti 350SXF FC350 19 Header pipe due 07/19 [] FMF-045623 Sold Out $799.00 Enquire
FMF Header Pipes FMF-045624 !Megabomb Plus S/S 450SXF FC450 19 Header pipe due 06/19 [] FMF-045624 Sold Out $599.00 Enquire
FMF Header Pipes FMF-045625 I Megamomb Plus Ti KTM450SXF 2019 FMF Header pipe due 04/19[] FMF-045625 Sold Out $799.00 Enquire
FMF Header Pipes FMF-045642 Megabomb S/S FC250 2020 Header pipe [] FMF-045642 Sold Out $949.00 Enquire
FMF Header Pipes FMF-840668 *P-Bomb Ti KTM250SXF 05-07 w/Header Assembly [A] FMF-840668 Available Was $339.00
Now $241.45 (Save 29%)
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