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so I have the 987 airbox, custom i believe 3.5" intake tube, 996 throttle body, and headers/exhaust.
I think on a stock 3.2 this would have only minor benefits, but on an engine moving more air, it may be beneficial. You also pick up what looks like 2" or more of runner length, which should help lower rpm torque.
I'm no expert but this is apparently something jake does on his motors.
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