3-Series (E46, E90)Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.
I found one made by "dinan" but have never heard of them and its 350$, so seems like K&N would be a fine choice. I had a k&n on my old mustang and my friend got good results after installing one on his s2000, and no reliability problems. I would stick with K&N.
I'm a fan of Conforti intake systems. You can find them at Turner Motorsport. I just installed one yesterday and the difference in engine performance is like night and day. The Conforti systems are slightly more expensive than most off the competition, but IMHO I think they are slightly better.
The fit and finish of the heat shield ensures that minimal heat gets to the air filter. The intake tube is also carbon fiber and it remains cool. The heat shield also doubles as a splash guard.
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