Alright, I want an intake for my M30. I've heard that the stock system is pretty much optimized for the engine, and obviously I won't be seeing big, if any, power gains. The main reason I'm interested is the sound, and perhaps to wake up the motor a bit.

I know TCD has an intake for the E28 M30B34, but not for mine. As far as I know, no company manufactures a bolt-in cold air intake for these engines.

I was wondering, if my information is false and a company does produce this, or if perhaps some of you 535i guys have rigged up a nice DIY setup. Keep in mind I'd rather keep the stock then have a system that looks like it came out of the garden.

Thanks in advance!
-Jeremy