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Helmholtz Resonator removal 997 Gen 2?

Doesn't have one AFAIK, it's just a normal air box with two open cone filters. That style is already going to give the loudest intake noise really, it's the exhaust that's stifled on the gen2 cars in terms of noise.
 
No.

Completely different "CAI" tube design direct to the throttle body (it barely has a tube)
 

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