Pipercross Foam Panel Air Filter/Element for BMW 4 Series (G22 Coupe, G23 Convertible) & M4 G82 - Performance High-Flow Washable Reusable Drop-In Intake/Induction Filter | OEM Stock Airbox Replacement Upgrade | UK Made

Pipercross Sports Foam Panel Element for BMW 4 Series G22 G23 and G82 M4

Give your BMW 4 Series or M4 the breathing it deserves with this serviceable foam panel element from Pipercross. It is a direct fit for the factory air box, delivers increased airflow compared with a paper insert and is built in Britain for long term performance. A simple swap that supports stronger engine response without changing the air box or mapping.

• Direct fit replacement for the standard filter in the stock air box
• Up to 30 percent more airflow versus a typical paper element
• Proven on the bench for improvements in engine breathing, response and efficiency
• Long service intervals and better dirt holding capacity than many cotton gauze designs
• Easy to clean and reuse with no restrictive wire frame creating dirt pockets
• Triple layer reticulated foam for excellent filtration with high flow
• Lifetime warranty for road use
• Hand built in Northamptonshire, UK

Compatible BMW models

BMW 4 Series G22 Coupe, G23 Convertible and BMW M4 G82. Designed as a drop in insert for the standard air box on these models.

Why choose foam over paper or cotton

Pipercross uses a three stage reticulated foam construction that traps particles through coarse, medium and fine layers. This staged filtration keeps harmful debris out while maintaining strong airflow for longer. Where thin paper or mesh backed cotton elements can clog quickly and restrict flow, this foam element keeps breathing consistently to support power and torque across the rev range.

Built in Britain

Manufactured and hand finished in the UK for dependable quality and repeatable performance. Backed by a lifetime warranty for road use, offering excellent long term value.

Our experience

We run these Pipercross filters on our own builds and customer cars. Feedback is consistently positive on quality, ease of maintenance and the way performance remains stable over time. It is a straightforward upgrade that works.

Fitting and support

Installation is a quick swap in the factory air box. For professional fitting or advice, contact MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

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