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Old 07-05-2014, 08:53 PM   #4
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Join Date: Nov 2006
Location: Cucamonga CA
Posts: 3,687
The bladder is part of your tuned intake called the Helmholz resonator. It has two purposes. One is to cancel acoustic waves from the intake valves that travel up the intake and can foul your MAF sensor readings. The other is simply intake noise suppression.
2009 Cayman 2.9L PDK (with a few tweaks)
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