I can ask my brother if he can find out the part number, he is a BMW Service technician.
and yes its a genuine BMW part, I'm definitely know that you can order it for the E92 and 1 series coupe, but I'm not sure if it can be ordered as an option for the 1 series hatch and convertible and the other 3's like the E90, E91 and E93.
For all those cars you can order most of the other BMW Performance stuff though like carbon fiber strut bars (900 euros), brake system, exhausts, suede leather carbon seats (2500 euro each), carbon fiber covers, diffusors, short shift systems and so on....the list is huge.
special bodykit with carbon flaps and spoilers, brake air vents in the sideskirts for the rear brakes......
Check this dude out, he bought a fully loaded 135 coupe with everything the catalogue has to offer, except that carbon fiber front strut bar! you can see that steering wheel as well, suede, the setting buttons are covered beneath the suede leather
135i QP - BMW Performance -> für Carbon-Liebhaber [ 1er BMW - E81 / E82 / E87 / E88 ] - www.BMW-Syndikat.de [Fotos - Bilder - Stories]
thats the best pic I could found of that strut bar
http://automobil-blog.de/wp-content/...ance_teile.jpg
totaly awesome, you can also buy those stickers @ BMW
they started with this program after showing the 135 tii concept car, which looked pretty much the same as that 135 in that photostory up there