FI's like bigger boxes... And if you have that small of a box you are going to need a lot of room for port.. when I had my re mt ten in a 3 cube box I had to make my single 6 inch aero like 21 inches long. I think your box will to too small to get the kind of performance that your going to want
Just had another measure of my boot i should be able to get another 100mm onto the height if i take my parcel shelf out. Works out at just under 4.5cuft, this is going to be a tight squeeze haha.
Hey I have over 100 designs for boxes. Plenty in my inventory so if you need help or would like me to design you a box email me at: DieselMech428@gmail.com
I may have one I will give it a look but you can email me. And I will gladly give you a design and the spec's, and the dimensions.
Sorry but i live in the UK and shipping would be a bomb, i've found someone quite local anyway he's going to help me measure out my boot. He said i should be able to get 4.5 easy.