Thanks Jordo and Vegas. I actually have 25mm H&R spacers on the rear.

Here's some better rear stance pics..
Spike X5, they are OEM 20inch BMW Style 177 wheels (not 166 like I wrote in the first post) They came on some 04'-06' 4.8is. Tires are Toyo Proxies, not sure the exact size.
Powers, they are the LeMans limited Edition fender arches, not the OEM 4.8is arches. They have front add ons as well and only work with stock Rbs. Here's the link->
BMW E53 X5 N62 4.8L > Exterior > View All > ES#1892130 Fender Flare Retrofit Kit - 51710398336