The aFe Power 51-20442 Magnum FORCE Stage-2 Pro DRY S Cold Air Intake System BMW 3-Series (E46) 99-06 L6-2.5L/2.8L/3.0L (M52/M54) for your 2001-2005 BMW 325xi is a great way to increase horsepower and torque gains by replacing your restricted factory air intake.

The Weapon-R Dragon Intake System BMW E46 3-Series 00-05 for your 2001-2005 BMW 325xi is a great way to increase horsepower and torque gains by replacing your restricted factory air intake.

The AEM Induction AEM Short Ram Intake System BMW for your 2001-2002 BMW 325xi is a great way to increase horsepower and torque gains by replacing your restricted factory air intake.