im just wondering what your opinions on four stroke exhaust brands. i have a fmf four stroke pipe on my 2004 wr450. whats the best? what sounds the meanest? thanks guys 

I always loved yoshimura when i was slingin exhausts.


Might try searching the model specific forums as well. Dudes love pipes.

Too many aftermarket pipes are too loud.  I have an FMF Q4 and megabomb on my 09 WR450F and had the same on a WR250F.  The Q4 is reasonable about the sound.  As far as what sounds the meanest, only kids are fooled by loud pipes.  

I just bought a 98 with a whitebrothers on it. Thing is loud as heck! So throaty it makes me cowr

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