I think that that Ive searched everyone and can't find a definitive answer...if there is one my apologizes.
I have a 14 MCS with 205/40/18's with DDC...I'd like to move up to
215/40/18's. I've read that there will be rubbing due to the DDC
Question is
Will there be rubbing?
If yes, can this be corrected with a spacer and what size?
Any thoughts and comments would be helpful!!
Thanks!

Interesting... I was told 215/40/18s would NOT rub with the DDC. I was told NM Engineering's test car has DDC and is running 215/40/18s without rubbing.

I've run both 215 40 18's summer
and 215 45 r17's winter with ddc without issue. Also I found that the 215's are generally cheaper than 205's
- must be a more common size.

Thanks for the comments!

They are also running a et45 wheel which is like having a 9mm spacer on a oem wheel. Its all about the rim offset