yay i just saw that but thanks cause my friend cut the hole a lil 2 big for my 15 but that was a diffrent 15 an i no the REs have bigger frames so i just ripped my tube port face plate off an replacin it 2day wit a new face plate wit a slot port tuned around 30hz to 32hz
just cut it the size of the outside of the sub then attach an overlap underneath the front if the box to cut your mounting hole for and mount it to that, it will be more flush anyway, save a little wood and barely lose any box vol