Is your Z a 6MT? Listen to TheDreamerz car at start up....I'm not sure if this is the sound that you are referring to, but If it is, this is normal...as I too hear this on my Z when I first crank it up on cold start...and this is with a stock exhaust system....You will begin to hear this noise after you release the clutch....You probably hear it more so now then before being that your exhaust system is a lot louder.....
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2013 Nismo Z34 / FI TT #091 / IG: @lilzilla_z34
Last edited by BOLIO 671; 03-26-2010 at 02:09 AM.
Reason: Correct You Tube Link
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