Performance Air Filter for BMW 3 Series / 4Series

High-Efficiency Induction for BMW N20, B48, and N47/B47 Powerplants

Who It’s For: Engineered for BMW 3 Series and 4 Series owners running the N20, B48, or diesel-platform N47/B47 engines who want to eliminate the "cork" in their factory intake system.

The Symptom: The factory intake on your F30 or F32 is a compromise between cost-effective filtration and strict noise reduction regulations. The OEM paper filter uses dense, restrictive fibers that create a significant pressure drop across the intake tract. When you’re looking for that immediate turbo spool-up or trying to execute a high-speed pass, the engine is fighting to pull air through a medium that is essentially a wall. This results in a "lazy" throttle feel and a muffled engine note that masks the true capability of your BMW.

The Engineering Fix: This BMC performance filter replaces the restrictive paper element with a multi-layered cotton gauze treated with low-viscosity oil. By utilizing a "Full Moulding" system, the filter is constructed from a single mold with no welded joints, ensuring structural integrity even under high-boost conditions. The physics are simple: we are increasing the surface area and reducing the resistance to flow. This allows for a higher volume of air to enter the combustion chamber while maintaining filtration down to 7 microns, actually surpassing the OEM filtration standard of 10 microns. The result is better air density and a more linear power delivery throughout the RPM range.

Why Mechanics Choose This Kit

• Enhanced Volumetric Efficiency: By reducing the intake vacuum, the turbocharger works less to achieve target boost, resulting in cooler intake temperatures and better sustained power.
• Lifetime Durability: Unlike paper filters that end up in a landfill every 15,000 miles, this unit is fully washable and regenerable using a BMC service kit.
• Superior Construction: The epoxy-coated alloy mesh protects the cotton layers from petrol fumes and oxidation, ensuring the filter doesn’t degrade over time like cheaper aftermarket options.

Technical Specifications

Compatibility & OEM Reference

Fits the Following Vehicles:

• BMW 3 (F30, F31, F80) 316 D (116 HP) 2012 >
• BMW 3 (F30, F31, F80) 316 I (136 HP) 2012 >
• BMW 3 (F30, F31, F80) 318 D (143 HP) 2012 >
• BMW 3 (F30, F31, F80) 318 D (150 HP) 2015 >
• BMW 3 (F30, F31, F80) 318 I (136 HP) 2015 >
• BMW 3 (F30, F31, F80) 320 D (184 HP) 2011 >
• BMW 3 (F30, F31, F80) 320 D (190 HP) 2015 >
• BMW 3 (F30, F31, F80) 320 D ED (163 HP) 2011 >
• BMW 3 (F30, F31, F80) 320 I (184 HP) 2012 >
• BMW 3 (F30, F31, F80) 320 I ED (170 HP) 2012 >
• BMW 3 (F30, F31, F80) 320 IX (184 HP) 2012 >
• BMW 3 (F30, F31, F80) 325 D (218 HP) 2013 >
• BMW 3 (F30, F31, F80) 325 D (224 HP) 2016 >
• BMW 3 (F30, F31, F80) 328 D (180 HP) 2013 >
• BMW 3 (F30, F31, F80) 328 I (245 HP) 2011 >
• BMW 3 (F30, F31, F80) 328 IX (245 HP) 2011 >
• BMW 3 GT (F34) 318 D GRAN TOURISMO (143 HP) 2013 >
• BMW 3 GT (F34) 318 D GRAN TOURISMO (150 HP) 2015 >
• BMW 3 GT (F34) 320 D GRAN TOURISMO (184 HP) 2013 >
• BMW 3 GT (F34) 320 D GRAN TOURISMO (190 HP) 2015 >
• BMW 3 GT (F34) 320 I GRAN TOURISMO (184 HP) 2013 >
• BMW 3 GT (F34) 325 D GRAN TOURISMO (218 HP) 2013 >
• BMW 3 GT (F34) 328 I GRAN TOURISMO (245 HP) 2013 >
• BMW 4 (F32, F33, F36, F82) 418 D (136 HP) 2014 >
• BMW 4 (F32, F33, F36, F82) 418 D (143 HP) 2014 >
• BMW 4 (F32, F33, F36, F82) 418 D (150 HP) 2015 >
• BMW 4 (F32, F33, F36, F82) 418 I (136 HP) 2015 >
• BMW 4 (F32, F33, F36, F82) 420 D (163/184/190 HP) 2013-2015 >
• BMW 4 (F32, F33, F36, F82) 420 I (184 HP) 2013 >
• BMW 4 (F32, F33, F36, F82) 425 D (218/224 HP) 2014-2016 >
• BMW 4 (F32, F33, F36, F82) 428 I (245 HP) 2013 >

Interchange Part Numbers:

FB702/20, B: 228, A: 204

The Performance Promise

Buy with confidence. We know the BMW F-Chassis inside and out. This BMC filter is the exact same technology used by top-tier racing teams globally, now sized for your daily driver. Backed by real automotive experts and fast shipping.