Please take a look at my kit.
According to: http://www.realoem.com/bmw/showparts...=13&fg=95&hl=2
But when I have it installed, It seems that 1 piece is missing (the part with the air sensor?!?!)
The box on top is the stock 1. it has a tube with an air sensor attached.
The bottom 1 is the BMW Performance & it seems not to have the air sensor & the tube.