Our garage has been graced with the presence of a clean 2001 E46 330i, so we can now begin development on this E46 intake. Let's dive right in!
The 330i stock intake system is similar to the 32X, the big difference being the size of the MAF housing. On the higher-output 330i models, this housing is larger so it can accept greater airflow needed by the more powerful, higher-displacement engine. To accommodate that larger diameter, our design will have a slightly enlarged opening on the heat shield. Everything else should fit right into place! Here are a few shots of the stock system we are working on.