KX Riders
Maintenance & Technical => KX250 / KX125 => Topic started by: mdo_1 on April 14, 2010, 01:15:09 PM
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What is the best expansion chamber to get for an 05 kx 250 wanted to get a fmf fatty but the sst pipe is supposed to be better...? what do you think?
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Have you gotten any feedback on your question? I have a 2006 KX250 All stock. I just picked up a Pro Circuit Works Pipe and R304 Shorty silencer. I race with it this weekend at Pala Raceway in california so I will see how she feels.
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I think that it depends on the type of riding you are doing, hill climbs, track, trails, dunes, exc... Pipes are a great way to tune the power for the type of bike you want. If you give us more info I am sure you will get lots of good knowledge.
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If you want to find the pipe that fits you best, check out this shootout that Dirt Rider did.
http://www.dirtrider.com/tech/141_0302_2003_two_stroke_exhaust_test/index.html
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The 03 engine is totaly differant from the newer generation 05 up engine. I will say that for woods riding the FMF Gnarly works very well. Little more bottom, smoother low to mid transition and maybe a little less top end. This is on a 2007 KX250. Pretty much the same as a 05. Gnarly worked well on my 03 also.
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I have a fmf gnarly on my 01 kx250. Great for the woods like The Flyin Hawaiian said. I have a fmf sst on the 300, it is much snapper but the 300 has tons of bottom so I didn't want give her what she all ready had. The fmf fatty is somewhere in between. I recommend the gnarly for the woods. It is the thickest there for the most dent resistant. Plus in the woods you can't really ring it out anyways. I hope this is some help, it all depends on the type of riding you want to do.