K&N Performance Air Filter - 3-Series (E90/E91/E92/E93) 325d 3/2010-2013

Give your BMW 3 Series 325d the airflow it deserves with this K&N high flow panel filter. It is a direct-fit replacement for the stock paper element, improving intake efficiency on the E90, E91, E92 and E93 diesel models while maintaining excellent engine protection. No mapping required and no modifications to the original air box.

Engineered with multi-layer oiled cotton media, this reusable panel element can be washed, re-oiled and refitted, delivering long service life and consistent performance. Expect sharper throttle response, a cleaner induction note and strong filtration for everyday road use.

Why enthusiasts choose this upgrade

• Direct replacement panel filter for the OE air box - simple DIY swap
• Reusable cotton gauze media - washable and serviceable for long-term savings
• High airflow with outstanding dust capture - protects your engine on UK roads
• Extended service intervals - as much as 50k miles between cleans in normal conditions
• Compatible with factory sensors and electronics - no ECU tweaks needed
• Backed by K&N’s renowned Million Mile Limited Warranty for road use

Fitment

Designed for BMW 3 Series diesel 325d LCI models:
E90 Saloon - E91 Touring - E92 Coupe - E93 Convertible
Model years 03/2010 to 2013

Real-world confidence

We have installed and run these filters on customer cars and our own builds, and feedback has been consistently positive. Owners report improved responsiveness and a subtle induction tone, with the convenience of cleaning and reusing rather than buying disposable inserts.

Maintenance

When it is time to service, clean and re-oil with the appropriate K&N recharge kit, then refit. It is a cost-effective, eco-friendly alternative to repeatedly replacing paper filters.

Professional fitting

Prefer us to install it for you? Book fitting at MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

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