K&N High-Flow Performance Panel Air Filter for BMW 3 Series E90/E91/E92/E93 (20082012) 316i N45, 318i, 320i, 320si Washable, Reusable Drop-In Replacement Fits OEM Airbox

Performance Panel Filter Upgrade for BMW 3 Series E90 E91 E92 E93 2008 to 2012

Give your BMW 3 Series petrol model the breathing it deserves with this K&N high flow panel insert. It is a direct replacement for the factory filter element in the standard air box on 316i N45, 318i, 320i and 320si from 2008, 2009, 2010, 2011 and 2012. No coding, no cutting, no remap. Just a quick swap for sharper throttle response, improved intake sound and dependable filtration.

We run these filters in our own cars and our customers are consistently impressed. Expect a crisper pedal feel, a subtle induction note and a serviceable filter that you can clean and reuse for the life of the vehicle.

Key benefits

• High airflow cotton gauze media designed to support power and response
• Reusable and washable construction that replaces disposable paper filters
• Direct fit panel insert for the stock air box on E90, E91, E92 and E93 petrol models
• Long service intervals — up to 50,000 miles between cleans depending on conditions
• Works with OEM sensors and electronics without ECU changes
• Eco friendly and cost effective over time by reducing waste
• Backed by K&N’s Million Mile Limited Warranty
• Will not void your vehicle warranty

Confirmed compatibility

BMW 3 Series E9x petrol 2008 to 2012:

• E90 Saloon — 316i N45, 318i, 320i, 320si
• E91 Touring — 316i N45, 318i, 320i, 320si
• E92 Coupé — 316i N45, 318i, 320i, 320si
• E93 Convertible — 316i N45, 318i, 320i, 320si

Why enthusiasts choose this upgrade

This performance panel element increases intake efficiency while maintaining excellent engine protection for daily road use. The cotton media promotes smoother breathing for your 3 Series, helping the engine feel more eager without compromising filtration. Clean, re-oil and refit with a K&N service kit to keep performance consistent for years.

Install and care

• Simple DIY fitment — lift the air box lid, swap the insert, refit
• No special tools required
• Follow K&N cleaning and re-oiling guidance for best results

Professional fitting

Prefer a specialist to install it Our team at MJ Modifications in Warwickshire can help. Request a fitting quote at info@mjmodifications.co.uk.

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