haha nice setup, I got 2 type R's myself......
and really it depends on your wants.... sealed would be the best choice if you want precision and quality of sound as it produces loud but solid bass, and is often good for many different genres of music...ported is going to be a little louder than sealed but not as good of quality as it will be adding more bass, so you will be losing some sound quality... Usually SUVs or larger vehicles use ported boxes, whilest cars and especially hatchbacks use sealed as thats what sounds best in them... Bandpass is gonna be all about competition and is not gonna give you any kind of good sound, its just going to be pounding bass... Most competitioners use bandpass as all they are looking for is the most bass possible, and not worried about sound quality...So for your car I would highly suggest sealed as thats what I have and I have had great results with it at competions
As far as size goes... your going to need to find the width, height, length, and depth of your trunk and either buy a box that will fit, or get one custom made to take up the entire space, but once again the choice is up to you..I just bought a box from my buddy who owns an audio store and it hits as hard as my friends custom made box so you njeed to decide what to do....
Good luck!!
