i've got some offers for the exhaust and rotors, but maybe you guys can get together and buy the pieces you want...??
Yes, the exhaust is genuine BMW Performance, you can see the plaque in the photos.
It was probably used for 2000-3000 miles, not exactly sure how long. Sounds so good! In excellent condition.
Sorry, brakes don't fit the 3-Series, wrong offsets. !35i has best brakes in BMW model range, except maybe the X6M...