I haven't seen any posts about it on here yet. But Mishimoto will be releasing a silicone intake hose for the 330 soon if you haven't heard already. They currently are having a presale for them right now ($95). I don't know when the sale ends, but mishi is expecting to start shipping these sept 9th.
I have already ordered one to replace my delapidated oem boot. But I am also curious of everyone's thoughts on these. I will update when I get mine in too. Below is the presale link.
http://www.mishimoto.com/bmw-e46-3-s...kit-01-06.html