« Reply #3 on: November 03, 2013, 10:21:56 pm »
No dia and lengths are very different . unlike earlier 250's and open classers up till 77 78 later pipes had the tech to be better .
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Yamaha tragic ; dt1, rt1, dt2, rt2, dt2mx , rt2mx , mx250, mx360,sc500, 74dt125, yzx125, yzc250, yzc400, yzd250, yzd400, yzh250, yzh80 , dt100 , xr75 ko xr80 03 , it175 82 . Not a member of any club