The easiest power-positive mod you can make to an N20 BMW takes about ten minutes and no tools beyond a screwdriver. The MMX Performance N20 Cotton Panel Air Filter replaces the restrictive paper element with cotton gauze, so your 2.0L turbo breathes easier every time you open the throttle.
It drops straight into the factory airbox, and you can put the paper filter back any time.
Why a Cotton Panel Filter for the N20
Cotton gauze flows more air than paper at the same size, giving the turbo a freer path and a slightly crisper induction note. It is washable and reusable, so it pays for itself after a couple of services.
What's Included
- 1 x MMX cotton panel air filter (MMR01-0702)
Key Features
- Cotton gauze filter medium for improved airflow
- Drop-in OE airbox replacement, no modification required
- About a 10-minute installation, fully reversible
- Washable and reusable
- 1-year MMX warranty against defects in materials and workmanship
- Part number: MMR01-0702
Vehicle Fitment
Fits BMW F-chassis models with the N20 2.0L turbo four-cylinder only:
- BMW F22 / F23 228i (2014-2016)
- BMW F30 / F31 320i / 328i (2012-2016)
- BMW F32 / F33 / F36 428i (2014-2016)
Does not fit N55, B46, B48 or B58 engines.
Emissions: This is a direct replacement filter element. It does not modify the factory airbox or any emissions control device.
Installation Notes
DIY in about ten minutes.
- Open the factory airbox lid.
- Remove the paper filter element.
- Drop in the MMX cotton panel filter and close the airbox.
