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MarylandSpeed · 02-19-2012, 08:35 PM

Headers are thinner than the cast iron manifolds. Because of this, sometimes you get what sounds like a slight ticking from the front of the car because they do not insulate sound as well. It is normal.

02-19-2012, 08:35 PM	#11
MarylandSpeed Account Suspended Drives: 2012 ZL1 & 2010 2SS/RS Join Date: Jul 2009 Location: Maryland Posts: 3,378	Headers are thinner than the cast iron manifolds. Because of this, sometimes you get what sounds like a slight ticking from the front of the car because they do not insulate sound as well. It is normal.