Collection: Air Cleaner Assemblies, Filter Elements & Accessories

Browse round and oval Proflow Flow Top air cleaner assemblies, replacement filter elements and air cleaner mounting accessories for carburettor setups. This collection also includes spacers, studs, retaining hardware and small breather filters.

Assembly options include 9-inch and 14-inch round styles and 12 x 9-inch oval styles, with heights and base designs varying by part. Many listed assemblies have a 5-1/8-inch neck; confirm the selected assembly matches your carburettor.

Before ordering, check the neck size, filter dimensions, flat or recessed base, bonnet clearance and mounting hardware requirements. For replacement elements, match both diameter and height to your existing assembly. Follow the specific filter manufacturer's cleaning and oiling instructions.

For carburettor service parts, browse our Holley Small Parts collection.

Have a question?

Air filters FAQ

Will these high-performance air filters fit my car or custom build?

Yes, our premium air filters are designed to fit a wide range of vehicles, including street cars, race cars, and custom builds. To ensure compatibility, please check the product specifications for dimensions or vehicle fitment, or reach out to our team with your vehicle’s make and model. We’re happy to help you pick the right filter for your setup.

How hard is it to install these air filters myself?

Installing our high-performance air filters is straightforward—even if you’re new to automotive upgrades. Most filters come with easy-to-follow instructions and basic tools are all you’ll need. Just remove your old filter, fit the new one snugly in its place, and make sure the housing is sealed tight. If you run into any issues, our support team is here to help.

What are the real-world benefits of upgrading to these air filters?

Our Proflow air filters are built for better airflow, which directly improves engine performance, boosts horsepower, and can help with fuel efficiency. Because they use high-flow designs and durable materials, you’ll notice a smoother throttle response, a little extra zip in acceleration, and longer-lasting engine protection—especially on high-demand street machines and race cars.

Are these air filters suitable for harsh conditions or racing environments?

Absolutely! These filters are made with tough, high-quality materials built to withstand demanding road, track, and off-road environments. Whether you’re out for a spirited drive or pushing your custom build at the track, our air filters deliver reliable, repeatable performance and deliver maximum airflow without compromising engine protection.

How do I clean and maintain a reusable air filter?

Our washable and reusable air filters are designed for easy long-term care. Simply remove the filter, gently rinse away debris with water (and mild soap if needed), let it air dry completely, and reinstall. We recommend cleaning every 10,000-15,000 km, or more often if driving in dusty conditions. Proper maintenance ensures optimal performance and saves money over disposable filters.