K&N High-Flow Reusable Panel Air Filter for BMW 3 Series F30/F31 Saloon/Touring 320i 328i (2012–07/2015) – Drop-In OEM Replacement Intake Filter, Washable Cotton Gauze Performance Air Cleaner, Fits Stock Airbox, Lifetime/Serviceable

Give your BMW 3 Series a proper breathing upgrade with this K&N reusable cotton gauze panel element. Purpose-built for F30 Saloon, F31 Touring and F80 chassis 320i and 328i from 2012 to 07/2015, it is a straight swap for the factory air box panel and delivers a noticeable uplift in response and drivability without compromising reliability.

What you can expect

• Free-flowing intake performance for stronger mid-range pull and livelier acceleration
• Crisper pedal feel with a deeper, more engaging intake note
• Direct replacement in the stock air box with no coding, no mapping and no cutting
• Works seamlessly with factory sensors and engine management
• Cleanable, serviceable and reusable cotton media for long-term value
• Service intervals up to 50,000 miles depending on conditions and driving style
• Backed by the K&N Million Mile Limited Warranty
• Designed to maintain manufacturer warranty compatibility

Fitment

BMW 3 Series 2012 to 07/2015: F30 Saloon, F31 Touring, F80 - 320i and 328i. Direct replacement panel element for the factory air box.

Real-world feedback

We run this filter on our own cars and have fitted it for many customers. The consistent feedback is quicker throttle pickup, smoother revs through the range and a more purposeful intake tone. It is one of the easiest, best-value BMW breathing upgrades you can do in minutes.

Why this K&N cotton gauze element

• Multi-layer oiled cotton media balances filtration efficiency with excellent airflow
• Buy once and reuse with a simple clean and re-oil when required
• Keeps the original cold-air box intact for OEM-like drivability and reliability
• Perfect foundation for future tuning and bolt-on mods

Installation and fitting

Simple DIY job with basic tools. Lift the air box lid, swap the element, refit. Prefer a professional install or a health check at the same time? Book with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Care and service

Clean and re-oil as needed using a K&N service kit. Typical service intervals up to 50,000 miles, subject to environment and usage.

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