I cannot see fitting 8s in the doors. I had Focal w-xp 6.5s and they fit with a spacer but no extra room. So I am trying the Audison TH Sax, also 6.5"s, they are wider on reverse side than even the Focals and the tabs for the speaker wires, which are one on each side, require significant carving in the door. having said that, 8"s could probably be made to fit if you are willing to expand the speaker hole A LOT. also, my door card has already been altered to remove part of the map shelf or whatever it is called and make room for the speaker. without that done, that shelf obstructs even a 6.5 much less an 8, and also might even prevent fitment of an 8.