Hmmmm Ok so I had a boxster rear wheel that is a 17x8.5 with et48.
and the math says it will fit, I put it on but cant tell.
Heres some pics. Main issue being was that the boxster wheel didn't have a tire so I couldnt sit the car down.
So right now, on the car, are D90's with the rear being 8" et52 (225/50 tires) WITH the 21mm spacers.
So with the spacers that basically means the offset is 31mm right?
So I took off the spacer and bolted the boxster rim on and it seemed the rim stood out further(with the car in the air):
but then with the car still jacked up
Next I put the d90 back on and noticed it stood out a bit, before I lowered it SO as I lowered it it moved inward.