Having a sleeper EB4 that hangs with a 5.0 would be pretty cool.
I think the EB4 has a ton of potential but the sky is the limit for the 5.0.
If money is no object than load up a 5.0 (mine comes in at over 42k the way I want it configured). If money is a factor than you have to choose what is more important, creature comforts or raw horse power. Its a lot easier to add power.
15 F22 M235i, JB4 Stage II, Cat delete, CAI
12 GT Prem 5.0 (Sold)