With the front lip the bc sides look the best, I would go with a bigger lip on the back or just a new rear bumper, because it looks too short comapred to the skirts and front.
yo get some oem Si fog lights, it would look tight like that... i would take the splitters off the front bumper and keep the sides stock... i think that Sniper R body kit from http://www.cervinis.com/welcome.html is tight, just not the spoiler and the hood i dislike...