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Old 04-08-2011, 05:01 PM   #55 (permalink)
UFO
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Join Date: Sep 2010
Location: Denver, CO
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Colorado - '17 Chevrolet Colorado 4x4 LT
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You realize gains with underdrive pulleys when your typical rpm range is high, like the street racers like to do. The power gain is miniscule, but they look cool with various colors of anodizing.
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