K&N Washable Reusable Engine Air Filter Panel for BMW 3 Series GT / 3GT Gran Turismo (F34) 318d 320d 325d Diesel 2013+ – High-Flow Cotton Gauze, Performance Intake/Induction Upgrade, OEM Direct-Fit Drop-In Replacement

Performance Panel Filter Upgrade for BMW 3GT F34 318d 320d 325d Diesel 2013 onwards

Unlock sharper throttle response, smoother mid‑range pull and stronger engine breathing with this K&N cotton gauze panel element. It drops straight into the factory airbox on the BMW 3 Series Gran Turismo F34 diesel range, giving high airflow and outstanding filtration in one quick, serviceable upgrade.

At MJ Modifications we have installed and run these filters on our own builds and countless customer cars. Feedback is consistently positive, with a crisper pedal feel, cleaner induction sound and confident filtration that protects the turbo diesel powertrain.

Why this intake filter is a smart upgrade

• High airflow cotton media that helps the engine breathe more freely for responsive acceleration
• Direct‑fit element for the OE air box, no cutting, no mapping, no warnings on the dash
• Washable and reusable for the life of the vehicle, a greener alternative to throwaway paper filters
• Up to 50,000 miles between cleans depending on driving conditions
• Designed to work with factory sensors and electronics
• Backed by the K&N Million Mile Limited Warranty

Vehicle compatibility

Direct‑fit serviceable panel element for:

• BMW 3 Series GT F34 318d 2013 onwards
• BMW 3 Series GT F34 320d 2013 onwards
• BMW 3 Series GT F34 325d 2013 onwards

Installation

Simple DIY swap. Open the air box, lift out the paper element and seat the K&N panel in its place. Ensure the seal is even and refit the lid. No tools beyond basic hand tools in most cases.

Care and maintenance

Clean and re‑oil when required to maintain peak airflow and protection. In typical UK road use you can see long intervals between services. Always follow K&N cleaning instructions.

Professional fitting

Prefer expert installation. Book in with MJ Modifications, Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

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Choose this proven intake upgrade for reliable gains in drivability and value over the long term. MJ Modifications recommends it for any F34 318d, 320d or 325d owner who wants OEM‑level fit with performance benefits and reusable convenience.