In 1999 Injen designed the first urethane filter with a built in velocity stack for added performance. The Injen Technology Research and Development Team calculates each filters mesh and pleat count for each specific application during the development stages. Today the state-of ...In 1999 Injen designed the first urethane filter with a built in velocity stack for added performance.
The Injen Technology Research and Development Team calculates each filters mesh and pleat count for each specific application during the development stages. Today the state-of-the-art Ea nano-fiber Injen/AMSOIL performance dry filter provides reliable performance and requires NO OIL. Both Injen Air Filters allow cleaning and durability for 1000's of miles to come.