K&N 33-2078 Replacement Air Filter - BMW E34 5 Series Performance Panel Filter
Unlock reliable airflow and crisp throttle response with the K&N 33-2078 Replacement Air Filter. This high-flow, washable and reusable panel air filter is a simple drop-in upgrade for the factory air box on select BMW E34 models. Perfect for enthusiasts who want a quality performance air filter that fits like OEM, the K&N 33-2078 helps your engine breathe more freely for smooth, responsive driving.
We use K&N filters on our own cars and our customers consistently rate them for their build quality, easy maintenance and long service life. If you are searching for BMW E34 air filter, BMW 525i air filter, BMW M5 E34 air filter, BMW 520i air filter, K&N 33-2078, K&N panel filter 33 2078, or performance air filter for BMW 5 Series, this is the proven upgrade.
Why choose the K&N 33-2078 panel air filter
- High-flow cotton media for improved engine breathing and smooth throttle response
- Washable and reusable - designed for long service life and cost-effective maintenance
- Direct OEM replacement - simple drop-in fit in the factory air box
- Quality construction from an industry leader in performance filtration
- Ideal performance air filter upgrade for classic BMW E34 daily and enthusiast use
Part Number
K&N 33-2078
Vehicle compatibility - BMW E34
Please use our product recommender to double-check compatibility. If you need help, email sales@nforcd.com.
- 5 Series
- 520i
- E34 2.0 (110 kW / 150 hp) 1991-1997
- E34 2.0 24V (110 kW / 150 hp) 1989-1995
- 525i
- E34 2.5 (141 kW / 192 hp) 1991-1997
- E34 2.5 (141 kW / 192 hp) 1992-1997
- E34 2.5 24V (141 kW / 192 hp) 1989-1995
- E34 2.5 24V (141 kW / 192 hp) 1991-1995
- M Series
- M5
- E34 3.6 (232 kW / 315 hp) 1988-1992
- E34 3.8 (250 kW / 340 hp) 1992-1995
- E34 3.8 (250 kW / 340 hp) 1994-1997
Compatibility check before dispatch
To ensure the part you order fits your vehicle, we run a compatibility check prior to dispatch. Provide your registration number for UK vehicles or the last 7 digits of your VIN at checkout.
Fitting and support
Direct-fit, no mapping required. For professional fitting, we can help. Book installation with Nforcd in Warwickshire - request a quote at sales@nforcd.com.
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