beergut
Well-Known Member
hey guys- buying a new impeller- can anyone tell me the difference between the 13/90 vs 14/90 pitch impellers? I'm figuring one has a better hole-shot response and the other is tuned for top-end, I'm just not sure which is which. I'll be replacing the stock impeller (13/18) on my 08 GTX 215. thanks
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