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Old 09-24-2013, 05:00 PM   #17
GMTool

 
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Drives: AGM 2012 Camaro 2SS/RS L99
Join Date: Mar 2012
Location: Southwest Illinois
Posts: 1,248
After I put headers on any noise from the CAI, (sucking air or swoosh noises) went away. Not that I did not like the CAI noises. It's just that the headers changed everything. I never heard a thud, but I never had my CAI on without a tune.
Try going out and driving in manual mode using paddle shifters so AFM won't kick in and see if you hear the thud.
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CAI Cold Air Kit. Dynatech Headers. High Flow Cats. Corsa Catback. JRE Tune. OEM Strut Tower Brace
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