11-27-2009, 10:28 AM
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#3 (permalink)
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A True Z Fanatic
Join Date: Mar 2009
Location: Greenville NC
Posts: 2,883
Drives: 370Z Sport
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Quote:
Originally Posted by Zsteve
is drone caused by the vibration in the pipes?
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A lot of systems have a natural resonance at certain RPM's on certain cars. Not too much you can do at the exhaust level without major surgery, but sound deadening the car can reduce the annoyance..
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