SO-7007 K&N Oil Filter, 1996 - 2006 BMW 3 series/ 5 series/ X3/ X5/ Z3/ Z4 4Runner or send it back to

or send it back to us for a rebuild under warranty

over a ¼ mile drag race we have seen intake temperatures reduced by 10-20c (18-36f) it also greatly reduces cool down time when drag racing as the supercharger isn’t able to completely heat up the coolant and the same for circuit racing

This air intake system is relatively easy to install usually in 90 minutes or less using the vehicle's existing factory mounting points with commonly available tools

Upgrade Your E41 ECM Right in the Garage/Shop

ignition timing and HP loss/reduction

SO-7007 K&N Oil Filter, 1996 - 2006 BMW 3 series/ 5 series/ X3/ X5/ Z3/ Z4 4Runner or send it back toK&N Select Cartridge Oil Filters are constructed with a high flow design that helps to improve engine performance by reducing oil filter restriction. K&N Select Cartridge Oil Filters provide outstanding filtration and engine protection throughout their service life and are engineered to handle virtually all grades of synthetic, conventional and blended motor oils. The pleated media provides high filtration capacity making them suitable for extended