Originally Posted by spyre
Are there any carb ok intakes out there for a n54 335i? Recently got the car and will be doing a tune on it and trying to decide what intake to go with it and not having to mess with holding onto the stock and swapping it on for smog would be handy if there are any that aren't terrible or super terribly overpriced.
I believe Afe makes CARB certified intakes. Check it out.