Does your exhaust go BLUB, BLUB, BLUB when you let up on the gas?

[smithbling]

Originally posted by Rick 91GT:
Some times it is caused by a lack of back pressure and what you hear is the cold air being sucked back into the hot exhaust flow. Long tubes headers even make this more prone, as they scavage further down in the exhaust system.

This is a bit of a long shot, but, if it is cold air being sucked back into the hot exhaust flow... (I too agree) Could it be similar to thunder?? I believe when a warm air mass hits a cold air mass you get thunder. Something to think about??

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C ME FLY
88 Notch
MAC headers, H-pipe, and Chrome 2.5" pipes, pullies, K&N filter, BM shifter, 17" ROH ZR6, Dropped 1.5".