E-2022 - K&N Performance Air Filter - N52 Euro Air Box - E9X 3 Series

Porsche 991 Turbo / Turbo S BMC F1 Replacement Air Filter (2013-2016) - Fabspeed Motorsport

K&N BMW 2-3-4 Series N20 Engine Performance Air Intake System – Studio RSR

So you want your N52 car to be faster? Here's a fun guide to point you in the right direction.

2007 BMW 328i Wagon 6-Speed for sale on BaT Auctions - sold for $14,500 on December 4, 2018 (Lot #14,542)

K&N Premium Oil Filter: Designed to Protect your Engine: Compatible with Select 2006-2020 BMW Vehicle Models (See Product Description for Full List of Compatible Vehicles), PS-7014 : Automotive

E-2022 - K&N Performance Air Filter - N52 Euro Air Box - E9X 3 Series

All digital issues Classic Motorsports

ESS E9x M3 Supercharger System

Is Castrol seriously advertising 20k miles between oil changes?? : r/Justrolledintotheshop

Universal 3 Inch 76 mm Cold Air Intake Sports Air Filter High Performance Clamp-On Washable Car Professional Spare Parts - AliExpress

Universal 3 Inch 76 mm Cold Air Intake Sports Air Filter High Performance Clamp-On Washable Car Professional Spare Parts - AliExpress

European air intake mod. - BMW 3-Series (E90 E92) Forum

K&N - E-2022 - N52 Euro Air Box High Flow K&N Air Filter

Give your BMW increased power, acceleration and better fuel economy from an air filter that lasts for 1,000,000 miles. Made in USA. Easy Install. Fast