K&N 33-2367 High-Flow Washable & Reusable Performance Panel Air Filter for BMW N54 - 135i (E82), 335i (E90 E91 E92), 1M, Z4 sDrive35i, 535i (E60 E61) - OEM Airbox Drop-In Replacement

K&N 33-2367 Panel Filter for BMW N54 Applications

Unlock smoother intake flow and crisp throttle response while keeping the original air box with the K&N 33-2367 panel element. This genuine K&N insert suits N54-powered BMW models and is a fast, value-packed intake upgrade for anyone wanting extra breathing headroom without switching to an open cone kit. Oiled multi-layer cotton media delivers excellent airflow and dependable filtration with a direct-fit design that installs in minutes.

At MJ Modifications we run the 33-2367 on our own N54 builds and many customer cars. Feedback has been consistently strong for response, drivability and long-term serviceability. It is a brilliant OEM-plus choice that works perfectly on both stock and tuned setups.

Key benefits

• Direct-fit panel element for the stock air box on N54B30-powered models
• Improved intake flow to help turbo spool and throttle response
• Premium oiled cotton gauze media with robust sealing gasket
• Reusable and washable for long-life ownership and reduced maintenance costs
• No mapping required and fully compatible with factory sensors
• Service intervals up to 50,000 miles depending on driving conditions
• Emissions legal in all 50 US states
• Backed by K&N’s Million Mile Limited Warranty

Compatibility

Suitable for the BMW N54 twin turbo 3.0 straight six in the following E Series models:

• 1 Series: E82 135i, 2011 to 2012 1 Series M Coupe
• 3 Series: E90 E91 E92 335i, 335i xDrive, 335xi, 335is
• 5 Series: E60 E61 535i, 535i xDrive, 535xi
• Z4: E89 sDrive 35i, Z4 35i variants
• Typical production years 2006 to 2017 where fitted with N54

What you receive

• 1 x Genuine K&N high flow reusable panel filter
• Designed to fit the original BMW air box on the models listed

Why this upgrade makes sense

The N54 responds brilliantly to better breathing. This panel insert keeps the factory air box for OE fit, NVH control and heat management while providing the flow capacity that the twin turbos appreciate. Ideal as a stand-alone enhancement or as part of a staged tuning path with intercooler, downpipes and software.

Part number

K&N 33-2367

Fitting and support

Straightforward DIY swap with basic tools. Prefer professional installation or a health check on your intake system? Book fitting with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Compatibility check before dispatch

We will confirm fitment prior to shipping. At checkout please provide your UK registration or the last 7 digits of your VIN so we can ensure the 33-2367 suits your specific chassis and engine.

Search terms our customers use

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Manufacturer and warranty

Brand: K&N

Warranty: Million Mile Limited Warranty