Performance Air Filter for BMW 1 Series/2 Series/3 Series /4 Series

Precision High-Flow Induction: BMC Performance Filter for BMW B48 & B58 Platforms

Who It’s For: Engineered for BMW enthusiasts running the B48 2.0L Turbo and B58 3.0L Inline-6 powerplants who want to optimize turbocharger efficiency without the complexity of a full intake system.

The Symptom: The factory airbox on the F-Chassis BMW is actually well-designed for heat management, but the OEM paper filter is a major bottleneck. These paper elements are designed for long service intervals and noise suppression, using thick, restrictive fibers that create a significant pressure drop. When your B48 or B58 tries to pull air during high-boost scenarios, the turbocharger has to work harder to overcome this resistance, which can lead to higher wastegate duty cycles and increased intake air temperatures (IATs).

The Engineering Fix: This BMC replacement filter utilizes a multi-layered cotton gauze media soaked in low-viscosity oil to catch impurities as small as 7 microns. By replacing the dense paper with a high-flow mesh, we straighten the airflow path and reduce turbulence before it hits the Mass Air Flow (MAF) sensor. The result is a more immediate throttle response and a turbocharger that reaches target boost with less mechanical strain, all while maintaining a factory-perfect seal thanks to BMC’s "Full Moulding" single-piece construction.

Why Mechanics Choose This Kit

• Optimized Volumetric Efficiency: By lowering the intake resistance, the B48 and B58 engines can achieve better cylinder filling, particularly in the mid-to-high RPM range where stock filters begin to choke.
• Enhanced Turbo Acoustics: While maintaining the factory airbox, this filter allows for a more pronounced induction note and a subtle increase in audible turbo spool and bypass valve venting.
• Superior Filtration Integrity: Unlike cheaper aftermarket filters, BMC uses an epoxy-coated alloy mesh to protect the cotton media from petrol fumes and oxidation, ensuring the filter doesn’t degrade over time.

Technical Specifications

Compatibility & OEM Reference

Fits the Following Vehicles:

• BMW 1 (F20, F21) 120i (184 HP) - Year 2016 >
• BMW 1 (F20, F21) 125i (224 HP) - Year 2016 >
• BMW 1 (F20, F21) M140i / IX (340 HP) - Year 2016 >
• BMW 2 (F22, F23, F87) 220i (184 HP) - Year 2016 >
• BMW 2 (F22, F23, F87) 230i (252 HP) - Year 2016 >
• BMW 2 (F22, F23, F87) M240i / IX (340 HP) - Year 2016 >
• BMW 3 (F30, F31, F80) 320i / IX (184 HP) - Year 2015 >
• BMW 3 (F30, F31, F80) 330e (252 HP) - Year 2015 >
• BMW 3 (F30, F31, F80) 330i / IX (252 HP) - Year 2015 >
• BMW 3 (F30, F31, F80) 340i / IX (326 HP) - Year 2015 >
• BMW 3 GT (F34) 320i / IX Gran Turismo (184 HP) - Year 2016 >
• BMW 3 GT (F34) 330i / IX Gran Turismo (252 HP) - Year 2016 >
• BMW 3 GT (F34) 340i / IX Gran Turismo (326 HP) - Year 2016 >
• BMW 4 (F32, F33, F36, F82) 420i / IX (184 HP) - Year 2016 >
• BMW 4 (F32, F33, F36, F82) 430i / IX (252 HP) - Year 2016 >
• BMW 4 (F32, F33, F36, F82) 440i / IX (326 HP) - Year 2016 >

Interchange Part Numbers:

FB928/20, B: 262, A: 271

The Performance Promise

Buy with confidence. This is the same filtration technology used by top-tier Formula 1 and GT race teams. Our staff of performance tuners ensures that every part we stock meets the demands of high-output BMW engines. Backed by real automotive experts and fast shipping.