Not bad for old equipment with BNG

Who was making the GYTR 144 kit for Yamaha. I thought they had offered that at one time. I have a complete Eric gorr 139 kit that I never installed on my sons 125. I think with a pipe and reeds the stock motor runs great.
 
I asked on vital which is better. Didn't get a good answer. I Asked MXA in a letter. Maybe they'll publish it or test the two against each other.
 
Who was making the GYTR 144 kit for Yamaha. I thought they had offered that at one time. I have a complete Eric gorr 139 kit that I never installed on my sons 125. I think with a pipe and reeds the stock motor runs great.

GYTR was an Athena kit if I remember correctly. Gorr is a hack.
 
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