Need help with ported box design and specs for my hdc3.15

[TPerry]

Going in 98 accord coupe

[Joe X]

Post max dimensions for a box.

[TPerry]

18 inch tall, 28 inch wide, 24 inch depth

[Joe X]

So here is a suggestion, power: to sub rated, amp subsonic filter to 28Hz, minimum port clearance 4", figure is just an assembly guide:

NOTE: If building outside you need to build a cardboard dummy box to test fit in it's way inside.