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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.

Notice: Closed Course Use Only
Item ID: 045520
Type: Header
Configuration: Single
Carb Warning: no
Header Const: Stainless Steel
Header Type: PowerBomb
Weight: 1.7 lbs.

Item Id - Manual Description
040018 - INST SHEET HEADER
040020 - INST SHEET HEADER
040021 - INST SHEET HEADER
040038 - INST SHEET HEADER
040073 - INST SHEET HEADER
041034 - INST SHEET HEADER
041082 - INST SHEET HEADER
041118 - INST SHEET HEADER
041133 - INST SHEET HEADER
041220 - INST SHEET HEADER
041282 - INST SHEET HEADER
041374 - INST SHEET HEADER
041458 - INST SHEET CRF450R'09 M-BOMB HEADER
041480 - INST SHEET HON CRF230L/M'08-09 P-BOMB HEADER (041480)
041484 - INST SHEET HON CRF250L'17-18 P-BOMB HEADER (041565)
041490 - INST SHEET HEADER
041518 - INST SHEET HEADER
041537 - INST SHEET HEADER
041565 - INST SHEET HON CRF250L'17-18 P-BOMB HEADER (041565)
041588 - INST SHEET HEADER
042037 - INST SHEET HEADER
042094 - INST SHEET HEADER
042131 - INST SHEET HEADER
042155 - INST SHEET HEADER
042179 - INST SHEET HEADER
042274 - INST SHEET HEADER
042337 - INST SHEET HEADER
042342 - INST SHEET HEADER
042364 - INST SHEET HEADER
042385 - INST SHEET HEADER
042389 - INST SHEET HEADER
043106 - INST SHEET HEADER
043137 - INST SHEET HEADER
043289 - INST SHEET DR650SE'10 P-BOMB HEADER (043289)
043307 - INST SHEET HEADER
043339 - INST SHEET HEADER
044033 - INST SHEET SUPPLEMENTAL YAM YFZ450'06 MEGABOMB (044140)
044033 - INST SHEET YZ'03-06 POWERBOMB HEADER SPECIAL INSTRUCTION
044225 - INST SHEET HEADER
044244 - INST SHEET HEADER
044269 - INST SHEET HEADER
044314 - INST SHEET HEADER
045358 - INST SHEET HEADER
045364 - INST SHEET HEADER
045364 - INST SHEET KTM 350SXF'11 PC-4/Q4/FACT-4.1 SLIP-ON MFLRS(045367-77)
045378 - INST SHEET HEADER
045390 - INST SHEET KTM 350SXF'11 PC-4/Q4/FACT-4.1 SLIP-ON MFLRS(045367-77)
045390 - INST SHEET HEADER
045425 - INST SHEET HEADER
045456 - INST SHEET HEADER
045456 - INST SHEET KTM 450/500XCF-W'12 PB/MB HEADER/MID
045465 - INST SHEET KTM 450/500XCF-W'12 PB/MB HEADER/MID
045465 - INST SHEET HEADER
045484 - INST SHEET KTM450SXF'12 SX EDITION P-BOM/M-BOMB HEADER/MID
045484 - INST SHEET HEADER
045520 - INST SHEET HEADER
045529 - INST SHEET HEADER
Make Model Year Make Model Year
BETA RR 350 10-18 BETA RR 390 17-18
BETA RR 390 17-18

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