JR, the referenced thread in post 4 concludes that ET11 is needed which contradicts your advice in post 3 to use 15 mm spacers (effective ET19).
Meanwhile I gave some bad info in post 2. My tires are 225 not 245.
Betcha the OP is truly confused now.
Your actually correct I started out with 15's went to 20's or 25's in the end when I noticed the rubbing on the shock towers. They are on my car now they look like 25's looking through the spokes.
Sorry for the confusion and thanks for pointing that out.