Here is what the Injen 128i intake will look like for our cars. I dont have a camera that is working right now, so no sound clips as of yet. I will post more pics up when my stuff feels like working again. Its a short ram intake with a heat shield.. I can barely hear it in my cabin due to my exhaust, but it does make my car sound more like a complete machine if that makes any sense to anyone. Gain for my car was around 10hp and about 10tq.
And The Dyno for my car with and with out the intake.
SP1118_2009_BMW_128i_6SPD.[1].pdf
The 90 degree bent metal sheet in front of the intake keeps the air from throwing any codes, or so i am told. pretty nifty eh.