Thread: lightweight pulleys
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Old 03-22-2012, 10:23 PM   #20 (permalink)
370ZilverZ
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I have been running the NST set for awhile now and have no problems with vibrations or any other concerns addressed in this thread. Performance gains would be difficult to say, as I also replaced my exhaust, intakes and cats at the same time. The difference in mass of the stock pulley had to let the engine wind up faster though.
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