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Old 09-27-2010, 12:16 PM   #1
tk-421
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4-2-1's will supposedly yield better gains at mid-RPMs, while 4-1's typically yield better gains at the top end. I am still a bit skeptical as far as the Yaris, since the runners on both cases are quite short. I'm not sure the difference will be too noticeable between those two designs.
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