Only mods would be cosmetic. I want to get some Lux Angel Eyes I think. The stock halogen look is just kind of terrible. I'd like to replace the factory wheels too because they are pretty bland.
The car has plenty of power for the driving I do, so I don't feel the need for Dinan or anything.
I wish we had a better track around here. Still, I can't wait to take it out to the BMW club track days next year even if the track is pretty small.