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Discussion Starter · #1 · (Edited)
Planning on a rear-firing 12" Alpine Type-R sub with the vent firing upward into the cabin through the stock 8" sub hole in the rear deck (base model 2011 Hyundai Sonata) ....

Port will be a 4" flared kit from PE:

^^is the basic idea. Port length is supposed to be in the 18.5" range for a 28hz tune.

This is my first attempt to build a vented box, any thoughts appreciated.


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