Amazon.com: K&N Premium Oil Filter:Designed to Protect your Engine: Compatible with Select 1995-2009 BMW/LAND ROVER/VOLVO/FORD Vehicle Models (See Product Description for Full List of Compatible Vehicles),PS-7007 : Automotive
K&N Air Filter BMW M3 E46 3.2L L6 (00-07) Performance Replacement - 33 – Redline360
Amazon.com: K&N Cold Air Intake Kit: High Performance, Guaranteed to Increase Horsepower: 50-State Legal: Fits 1998-2005 BMW (320Ci, 320i, 325Ci, 325i, 325Ti, 325Xi, 323Ci, 323i, 328Ci, 328i)57I-1000 : Automotive
K&N Filter with Generic Air Intake System for 1998-2005 BMW E46 323 325 328 330 | eBay