and well. as far as the cats go.... I only left one on to keep it from no being so loud. my friend as a RSX Type-S and and he doesnt have a Cat on and it sound way to loud. Sounds good, but just too loud for me.
And the hole... i have plans for that, just you wait and see.... lol Im thinking on covering it with some carbon fiber piece of some sort. like cover it from the inside of the hole. but we'll see