Pipercross Performance Foam Intake Filter - BMW 1 Series 125i F20 F21 B48B20B

Give your 125i the breathing upgrade it deserves with a UK-made Pipercross sports filter element. This drop-in, serviceable intake filter slots straight into the factory airbox for BMW 1 Series F20 and F21 125i models from 06/2016 with the B48B20B engine code, delivering cleaner airflow and long-lasting protection without mapping or extra hardware.

Why this Pipercross upgrade stands out

• Simple swap for the standard paper element - no remap required
• Up to 30 percent more flow versus a paper filter, helping response and drivability
• Three-stage multi-density foam captures fine particles while keeping airflow strong
• Maintains performance longer than cotton gauze or paper alternatives
• Clean and re-use - long service life reduces maintenance costs and waste
• Bench tested for gains in efficiency, power and torque potential
• Lifetime warranty for road use
• Handmade in Northamptonshire, UK

Foam technology for performance and protection

Pipercross uses layered, open-cell foam to maximise dust holding capacity and keep airflow consistent between cleans. A coarse outer layer slows down larger debris, a denser mid-layer deals with the bulk of contaminants, and a fine inner layer safeguards your engine. The smooth profile avoids dirt traps, making cleaning quick and effective so you keep performance on song.

Fitment

BMW 1 Series 125i - F20 and F21 - 06/2016 onward - B48B20B.

What our customers say

We run this filter on customer cars and our own demonstrators. Owners consistently report sharper throttle response and worry-free maintenance thanks to the washable design. It is a proven, value-packed intake upgrade for everyday driving and spirited road use.

Installation and support

Want it fitted professionally or need advice on complementary upgrades? Book with MJ Modifications in Warwickshire. Request a quote via info@mjmodifications.co.uk.

Key points at a glance

• Performance intake filter for BMW 125i B48B20B
• Serviceable, washable foam element - long-life upgrade
• Drop-in replacement for the factory airbox
• Enhanced airflow to support response and efficiency
• UK built with lifetime road-use warranty

Search terms to help you find this item

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