Air filtration backed by racing experience

DT-1 has been handcrafting foam air filters in Belgium and the United States for more than forty years. Founded by Belgian rider Dirk Temmerman, the brand maintains an identity rooted in motocross and racing. Its range combines filtration, support and intake maintenance, with solutions that must be selected to suit the airbox and the specific application.

Filters, cages and intake systems

DT-1 air filters include dual-layer, triple-layer and Evolution versions, as well as pre-oiled and unoiled options. The Super Seal base uses foam and neoprene to seal against the airbox without requiring grease at that joint. This does not replace oiling the filter foam: always check the preparation required for the part before installation.

DT-1 filter cages include aluminum and carbon fiber constructions. The AirPower family brings together specific supports and assemblies; the filter and cage must match each other and the airbox. Sharing a brand does not mean that any filter can be used with any support. Also check the contents of each kit.

Washing, protection and maintenance

DT-1 wash covers close off the intake opening while the airbox is cleaned with the filter removed. Their shape and seal must fit the corresponding housing. They are maintenance tools: remove them after cleaning and before reinstalling the filter to use the motorcycle.

DT-1 prefilters and covers provide additional protection for the foam filter against dirt. Elastic covers and versions designed for particular filter shapes are available. Check the shape, dimensions and system they fit over; an auxiliary cover does not replace the main filter or its maintenance.

The range is completed by foam filter oils and a dedicated cleaner. Use a product suitable for the material and follow the cleaning, drying and oiling instructions for each part. Before buying, identify the vehicle and intake assembly: choosing the right filter, support and accessories helps ensure a coherent installation.