Pipercross Air filters

The technology used

Why foam?

At the heart of the unique Pipercross air filter is a specially developed polyurethane foam which acts as the filteration medium, having both higher performance and life expectancy than paper

Pipercross reticulated foa is created by a chemical reaction, it is then placed in a gas filed combustion chamber where a controlled explosion burns away any complete cell walls in the material form a skeletal cellular structure which is specified by Pipercross ensures that the foam consists of tiny open cells which trap contaminates. The cell size of the foam, it's porosity, is measured in Pores Per Inch (PPI). Pipercross air filters use up to six layers of foam with varying porosity descending in pore size in the direction of air flow.

The Pipercross filters long life span is due to the dirt storage capacity of the foam cells and the filters construction which means no air passage blocked until all the cells in a layer of foam are completely filled.

It is designed to hold contaminants in the filters outer layer, inner layer acts as a secondary measure to ensure an exceptionally high level of engine production.

The Pipercross 150mm Outer Diameter base found on Pipercross Induction Kits, Vipers, PX700 and Evolution is used to create laminar air flow. Laminar air flow occurs when the air flowing in the same direction and turbulence is kept to a minimum. Turbulence cause drag which slows the airflow down and limits the flow rate of any induction system. Filter units without a full radious edge create turbulence, thus reducing their effectiveness.