Glad to see you went with e 92 instead of the usual e90.. Which I think looks gastly tbh.
Depends what your really looking for when you want to mod?
Cosmetic or performance based?
Cosmetic I would say, but this is what I like and everyone's different.
19" M6 style wheels
Angel eye upgrade: (plenty! To look for In this department, look in the lighting section, sticky at the top that shows nearly every company that does aftermarket angel eyes)
I would look at lux v3s.
Depending on your look you want to go for I would say black out your front kidneys and get some 35% tint in there
Performance parts, there's PLENTY of info on here, plenty of tuners.
Burger tuning is good, and very common on here, JB4, DCI are common first performance bolt ons.
Have a surf around and see what you like!