Performance Air Filter for BMW 1 Series, 3 Series E90, X1 Inline-6 (2005-2013)

Maximize N52 & N53 Induction Efficiency | BMC High-Flow Performance Filter for BMW E8x & E9x

Who It’s For: Engineered for BMW enthusiasts running the legendary N52 and N53 naturally aspirated straight-six powerplants who are tired of the stock sluggishness found in the factory intake tract.

The Symptom: The factory intake system on the BMW E90 and E87 chassis is designed for silence and long service intervals, not peak volumetric efficiency. By using a restrictive, thick-fiber paper filter, the engine is forced to work harder to pull air through the intake, creating a noticeable lag in throttle response and a muffled engine note.

This restriction is particularly felt in the heavier 3 Series and X1 chassis, where the engine needs immediate airflow to overcome inertia during spirited acceleration or highway passing maneuvers.

The Engineering Fix: This BMC performance filter replaces the restrictive paper element with a multi-layered cotton gauze soaked in low-viscosity oil. By utilizing fluid dynamics principles, BMC has engineered a media that captures impurities as small as 7 microns—surpassing the OEM 10-micron standard—while significantly reducing the pressure drop across the filter.

The result is a more dense, higher-velocity air charge entering the intake manifold, allowing your Valvetronic system to respond with precision and providing a refined induction roar that the straight-six engine deserves.

Why Mechanics Choose This Kit

• Enhanced Volumetric Efficiency: By reducing intake vacuum restriction, the N52/N53 engine can achieve better cylinder filling, resulting in improved torque delivery across the RPM sweep.
• Precision Filtration: Unlike cheap filters, BMC uses an epoxy-coated alloy mesh to protect the cotton layers from petrol fumes and oxidation, maintaining a 7-micron filtration threshold for maximum engine longevity.
• Full Moulding Construction: The "Full Moulding" system creates the entire filter from a single mould with no welded joints, eliminating the risk of seal failure or air bypass that can trigger MAF sensor errors.

Technical Specifications

Compatibility & OEM Reference

Fits the following vehicles (BMC fitment data):

• BMW 1 Series (E81,E82,E87,E88) 125i (218 HP) | 2008-2013
• BMW 1 Series (E81,E82,E87,E88) 128i (230 HP) | 2008-2013
• BMW 1 Series (E81,E82,E87,E88) 130i (265 HP) | 2005-2012
• BMW 1 Series (E81,E82,E87,E88) 130i (258 HP) | 2009-2012
• BMW 3 Series (E90,E91,E92,E93) 325Xi (218 HP) | 2005-2007
• BMW 3 Series (E90,E91,E92,E93) 330i (258 HP) | 2005-2006
• BMW 3 Series (E90,E91,E92,E93) 330i (272 HP) | 2006-2012
• BMW 3 Series (E90,E91,E92,E93) 330Xi (258 HP) | 2005-2007
• BMW 3 Series (E90,E91,E92,E93) 330Xi (272 HP) | 2007-2012
• BMW 3 Series (E90,E91,E92,E93) 323i (190 HP) | 2006-2013
• BMW 3 Series (E90,E91,E92,E93) 323i (173 HP) | 2006-2010
• BMW 3 Series (E90,E91,E92,E93) 325i (218 HP) | 2005-2007
• BMW X1 (E84) 25iX (218 HP) | 2010-2011
• BMW X1 (E84) 28iX 3.0 (258 HP) | 2009-2011

OEM Cross Reference (BMC): BMW 13717536006

The Performance Promise

Buy with confidence. As the leading choice for Formula 1 and GT race teams, BMC brings track-tested filtration technology to your BMW. Backed by real automotive experts and fast shipping.

Common Questions

Which BMW models does it fit?
BMC lists the 125i / 128i / 130i, 323i / 325i / 330i (incl. xi) and X1 25iX / 28iX, 2005-2013.

Is it a direct fit?
Yes. It replaces the factory element in the stock airbox with no modifications.

Can I clean and reuse it?
Yes. Wash and re-oil it with a BMC regeneration kit.

How fine is the filtration?
The multi-layer oiled cotton traps particles down to 7 microns.

What will I notice after installing it?
Sharper throttle response and a stronger intake sound.