Ramair PRORAM High-Flow Panel Air Filter for BMW 3 Series, Z4 & Toyota Supra Mk5 (A90) – PPF-9774
This Ramair PRORAM panel air filter is a direct, drop-in replacement for the standard paper filter that sits inside your car’s existing airbox. It is designed to allow more air to flow through to the engine while still filtering out dust, dirt, and debris – giving you a cleaner, more efficient intake without needing to modify anything on the car.
The filter uses a pleated synthetic nanofiber material. Pleating increases the total surface area of the filter, which means more air can pass through at any given time compared to a standard flat paper filter. More airflow to the engine can support better throttle response and a marginal improvement in power – particularly noticeable when driving at higher revs or under load.
Why Choose a PRORAM Filter?
Ramair has over 35 years of experience in motorsport filtration, and the PRORAM range applies that knowledge to road and track cars. The nanofiber media is precision moulded to fit the original airbox exactly, so installation is straightforward – no cutting, no adapters, and no specialist knowledge required. Unlike a standard paper filter, this one is washable and reusable, meaning it should last the lifetime of the vehicle with proper care.
Filter Specifications
- Filter type: Flat panel
- Filter material: Pleated synthetic nanofiber
- Length: 271mm
- Width: 233mm
- Washable and reusable – lifetime filter
- Direct OEM airbox replacement – no modifications needed
Vehicle Fitment
This filter has been developed to fit a range of BMW and Toyota models that share compatible airbox designs, including the BMW 3 Series (2015-2020), BMW Z4 (2018-2020), and Toyota Supra Mk5 A90 (2019-2020) in both 2.0 and 3.0 GR variants. Please use the vehicle lookup tool on this site or check the Vehicle Fitment tab to confirm compatibility with your specific model, engine, and year before purchasing.
Important: Always ensure the filter is correctly seated and secured within the airbox after fitting. An improperly fitted filter can allow unfiltered air into the engine, which may cause long-term damage. If you are unsure about installation, have the filter fitted by a qualified mechanic.
Additional Information
| Weight | 1 kg |
|---|---|
| Dimensions | 40 × 35 × 5 cm |
| Brand |

