Upon decelerating... Vibrations??

Kind of an urgent matter he's out driving and says upon letting go of the gas, and decelerating the car makes a strange noise, vibrations occur under his feet and there is more popping than usual in the exhaust (he has Kleeman headers, custom midsection, tune). Any idea what it can be?? I know it's vague but thats all we have to work with now. Any help would be appreciated. Thanks!!!




Something to check as well as cracked pipes or loose clamps. Also check that the header bolts/nuts are still properly torqued.
Trying to have 3rd parties twice removed do an online diagnosis is a waste of time
Last edited by NORTH 44 C63; Sep 4, 2011 at 08:03 PM.



