Originally Posted by NeedsWings

happy to help with the rims, i use www.willtheyfit.com quite often, excellent fitment calculator
factory specs for both NA and SRT6 are 18x7.5 +35 and 19x9 +22
5x112 66.6cb Ball Seat.
you can easily go outward 15mm f&r, cannot go much further inward on the front due to a suspension bolt (which can be ground down)
if you haven't already picked out a rim style you are after, i have almost 100 refinished mercedes/amg rims here i can show you