My install went very smoothly and everything lined up great. Splitter to IC fitment side to side is nearly perfect as is the front seal, but I don't remember if my back two rows are covered or not. I'll check that out later today and report back.
Overall though, I was really happy with mine. I was surprised when people started posting fitment issues. Mine's been on since around June last year; I wonder if something has changed since then.
MODS: PW TMIC, Cobb catted DP, HKS cat-back, AVO filter, Bren e-tune; Konis/Epics, Advan RCII