^ they are not, they are the same as rsx, ep3, tl....... .They are NOT The perfect hole size for the 06+ civics and never have been. BUT once you tighten them down they work fine
I would just get the Hybrid base bushings for the 8th (just make sure you get 4 rsx)they fit like a glove perfect machining and no gaps,wobble...anything even without being bolted down.