Quote:
Originally Posted by Hendols3
I’ve looked all online with no answers. I feel like this isn’t a common thing at all. I still don’t understand how this is possible. I had stock manifolds with a 3inch MBRP exhaust on the car with no cats, 2010 LS3, it popped and crackled on the deceleration like normal. I installed long tubes a month ago and as expected the crackle and pop increased. Yesterday I decided to clean the throttle body, a little dirty by nothing out of the ordinary. Reinstalled it and started it up. Popped on start and now when I drive it the exhaust pop is completely gone except on revs and is now very quiet on the deceleration. Even the raspy ness that the exhaust has at times is gone. Car still pulls hard and nothing feels different power wise or driving wise. Should I be concerned or has anyone heard of this?
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Im having the same issue,installed header and catback and sound increased. Then on a new round of mod i installed 2.45 pulley and 1050cc injectors and the crackle has gone. It has to do with DFCO tables as far as i have researched.