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Broken Header - What does FMF stand for - ThumperTalk My header broke at the collector weld and they don't care - "not interested, thanks" I thought I knew what FMF stood for but now I need to rethink that Any ideas?
Replacement header pipe. What are our options? - ThumperTalk I totally agree that the OEM pipe is larger in diameter than a FMF, but diameter does not equal 4-stroke scavenging efficiency when people design in a "power bomb" section different things happen
FMF =equals= Fast Mother Fer ( w pictures) - ThumperTalk FMF says to use a silicone based gasket sealer there If you did, it probably blew out Its not real obvious, just shows very little wisps of black soot on the pipe where the connection is made You may be able to feel it with the bike running It doesn't take but a tiny leak to make allot of annoying popping on decel
lift style bike stands - General Dirt Bike Discussion - ThumperTalk In my experience, the FMF lift stand is the best on the market It's solid, stable, and doesn't rock like other lift stands I've had The only downside is it's heavy My 3 yr old FMF stand is wobbly and the top plate bends
FMF Factory 4. 1 Slip-on vs. Full System - ThumperTalk I have a 2020 YZ250FX and am interested in getting the FMF Factory 4 1 stainless exhaust In large part because it makes the bike a little quieter, but also because I look the looks The added power won't hurt, although I don't feel the bike is really lacking anyway (and seen mixed reviews on whe
What does the fmf powerbomb header really do? - ThumperTalk Has anyone experienced any real noticeable difference between the Fmf Powerbomb header and the stock one with an aftermarket slip on? Assuming Dave's mod has been done as well I'm wondering if the $280 is justified Thanks