The Mishimoto performance air intake for 2001–2006 BMW E46 330i is a complete bolt-on kit that works with the stock tune and helps increase induction flow without harming air/fuel ratios. It uses the stock intake duct to draw cooler air into a high-flow oiled filter that’s washable and reusable, and includes a steel heatshield with rubber trim. Dyno-proven gains of about 7 whp and 9 wtq; no tune required and backed by a Mishimoto lifetime warranty.
Mishimoto 01-06 BMW 330i 3.0L Performance Air Intake