Fmf pipe ID

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1/23/2019 6:35 AM

Picked up this new fmf pipe for my cr125. Came
From Blackfoot Honda’s eBay store, was pretty cheap so I snatched it up. Was listed as a 2002-2003 cr125 factory pipe. But it appears to be
Modified or more then just a off the self pipe. It’s hand engraved CR125 FF+8 on the pipe mount. And has a brace on the stinger. Pretty cool non the less.
Anyone know anything about it? Possibly a left over race pipe from their early 2000’s race team? I emailed fmf and person I spoke to insisted it was a repaired off the self pipe, But off the self pipes are stamped with the model number.
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2010 crf450
2002 cr125
1993 Yamaha waveblaster
1993 Kawasaki 750sx

1/23/2019 10:09 AM

Maybe made to work with the 94 HPP cylinders that everyone was using for a while(pretty sure that's what they were using)? I believe Tractor might have more info on it

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2017 RMZ450
2005 YZ250-sold :,(
1998 YZ250
2005 KX250F

80% of the time it works every time
IG @2HRacing
Thanks to : Factory Effex, N2Dirt, Acerbis, DT1, Fasthouse, Matix, FMF, ASV, 100% & Mika Metals

1/23/2019 12:20 PM

That does not look off-the-shelf with that extra weld in the middle. My wild guess is FF+8 means Factory Fatty with 8mm added where they cut it in the middle.

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Powerband in every gear !

1/23/2019 12:40 PM

My guess:

FF +8 = Factory Fatty with 8mm added to the flange (manifold that mates to cylinder) and was meant to be used with the HPP cylinder. The older cylinder required a different pipe length (longer).

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1/23/2019 1:40 PM

Awesome info guys. The addition is right about 8mm so I guessed the same. I already have a hpp cyl swap and it’s gonna need a little tweak to fit. Just like my 02 fatty did.

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2010 crf450
2002 cr125
1993 Yamaha waveblaster
1993 Kawasaki 750sx