Odd shape of sub enclosure

EDITED BY MODERATOR

Hey, this is the first time I ask a question so if I do it wrong I apologize. I have a 2001 Nissan frontier and Im trying to install 2 12" Phoenix golds in the back but the space is very reduced. I was thinking of building the enclosure to fit perfectly in place without removing stock parts of the vehicle but that gives it a strange forms with too many edges, drops and curves. The cubic inches would be ok for my subs but, do you think the strange shape would give it a bad sound

PLEASE DO NOT USE AN EDITOR LIKE WORD TO COMPOSE YOUR POSTS!

You should be fine with the strange shapes =)

The stranger, the better...and you'll fit right in with this crowd  ;)

Seriously though, the tremendous amount of added effort in designing and building this box will be worth it for the custom look you'll achieve.  For a spectacularly weird shape, the best way to figure air volume is to actually build the enclosure to fit using cardboard that is duct-taped together.  Put it together just as the normal box would be built and even cut the holes for the subs (razor knife for this step!).  When done, pull it out of the truck and fill it with the smallest size packing peanuts you can find.

You will have a volume of packing peanuts that you can measure in liters, or convert to cu ft.  If you respond to this reply and want to go this route, I'll link to a converter online that you can use.  You would also have to account for the difference in wall thickness between cardboard and MDF, and I can show you how you can accomplish that.

Sorry if this goes in twice but the last post didnt show up.

The setup is going in my 2006 Toyota Yaris in the hatch. It fits perfect between the wheel tubs. I didnt want to cut up my car and it has to be removable. It tucks in behind the back seats, under the stock parcel shelf and between said wheel tubs. You dont see it unless the hatch is up.

The amp rack is 3/16 x 1.5 inch steel which will bolt to the box at a slightly steeper angle between the two subs.

Ive also included a pic of the amp.