I originally wanted to order the OSIR carbon B pillars and have the door inserts custom made with Carbon fibre as well. However, the price is very high at over US$700.
I am really against using carbon stickers as its really Cheezy and really not suited for an Audi... But, I found this stuff in our local version of "Halfords" in Hong Kong and decided to give this a try. Its not cheap at about US$180 for a sheet that is 40cm x 60cm but its still way cheaper than spending US$700
Its called "Magical Carbon" and its from a Japanese company called Hasepro. http://www.hasepro.com/hasecar/public_html/catalog.htm This stuff is basically a thin sheet of PVC that has the look and the texture of Carbon fibre. The good part is that you can work it over bends with a blow dryer and it forms to the shape (to a certain extent). The glue is super tough but peels off without any residue.
Here are some pics and the final result... It looks so nice that I am doing the shifter trim and ashtray tomorrow!!