Ok i need your guys help im doing a fiberglass box in the back of my car its in the build logs. box will be around 1.7 cubic feet, it will be for a single treo ssi or ssx 10 i will be using areo ports just was wondering what people think i should use for ports like sizes and combonations im thinking 2 3's would work but thats not alot of port area what do you guys think.

I think two 3's or a single 4 will work.

I would just do a single 4" aero

I have 2 3" Aeroports in a 2.73cuft box and it sounds great .