K&N 33-2530 High-Flow Washable Performance Intake Panel Air Filter – Reusable Drop-In OEM Airbox Replacement for Porsche 911 Turbo (930/964) & 911 SC; BMW E21 320/323i, E12 520i, E3 3.0Si, E9 3.0 CSi

K&N 33-2530 Serviceable Panel Filter Element

Give your classic Porsche or BMW a simple intake upgrade with the K&N 33-2530. This premium, cleanable cotton gauze filter insert drops straight into the factory air box for an instant refresh to breathing, a crisper throttle feel and a richer induction note. It is a long-term, money-saving alternative to disposable paper elements and a favourite with our team and customers alike for its quality and ease of maintenance.

Why enthusiasts choose the 33-2530

• Serviceable oiled cotton gauze media designed for increased airflow compared with many paper elements
• Clean, re-oil and refit for years of use – no need to keep buying throwaway filters
• Straight swap into the OE air box – no cutting, drilling or ECU calibration required
• Refined induction tone and responsive pedal feel while maintaining excellent filtration
• Proven construction from a brand trusted by performance and classic car owners
• Used by MJ Modifications on customer cars – consistently positive feedback on fit and drivability

Vehicle compatibility

Please verify fitment for your exact model and build year. If you need assistance, contact us and we will confirm before dispatch.

Porsche applications

• 911 3.0 SC Coupe and Targa 07/1977 to 06/1980
• 930 Turbo 3.3 including SC Turbo 09/1977 to 06/1987
• 930 Turbo 3.3 06/1986 to 08/1989
• 930 Turbo 3.3 330 PS 09/1986 to 11/1990
• 964 Turbo 3.3 08/1990 to 09/1993
• 964 Turbo S 3.3 06/1991 to 12/1992
• 964 Turbo 3.6 01/1993 to 09/1993
• 911 Targa 3.3 Turbo 09/1986 to 11/1990

BMW applications

• E21 320/6 2.0 1977 to 1982
• E21 323i 2.3 1978 to 1982
• E12 520i 2.0 1972 to 1979
• E3 3.0Si 1971 to 1975
• E9 3.0 CSi 1971 to 1976

Fitting and support

Most owners can install this element at home in minutes with basic tools. Prefer a professional to fit and health-check your intake at the same time? MJ Modifications offers installation in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

For peace of mind, we can run a UK reg or last 7 VIN confirmation before shipping. Add your vehicle details at checkout and our team will double-check the match.

Part number

K&N 33-2530

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