Extending the port of a ported subwoofer enclosure?

I'm planning to pimp out my car, i was wondering...
If i design my own subwoofer enclosure, i want to extend the port, so that the enclosure is vented right inside the car (not the trunk)

if i did that, would i have to re-calculate port diameter?


Picture of Extending the port of a ported subwoofer enclosure?
Re-design4 years ago
Yes.  If it's longer the peak will be lower (iirc).
Sandisk1duo (author)  Re-design4 years ago
so i calculate the port as if the whole port was outside the enclosure?
I don't think so...  Use the total length and diameter to calculate the size.
Sandisk1duo (author)  Re-design4 years ago

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