welcome! im running 18x8 +45 235/40 on my Speed 6..fenders def. need to be rolled in the back...i dont kno if its any different for the regular 6 but im sure its similar.
it's lowered with eibach pro, i dont like the 4x4 look so I did the springs first. So that means i'll be in the hunt for some shocks as well in the near future.