Injen universal air filter Specs: Injen Filter 2.5 inch Mouth

Injen set out to develop the ultimate filter design, and they have come up with the Injen Universal Filter. After extensively testing rubber and plastic compounds they came upon a urethane rubber that is able to withstand elevated temperatures with zero distortion. Urethane is a light weight material which will not fade and will hold its shape for the life of the filter. Injen pioneered the technique of incorporating the built-in velocity stack in the filter base. Injen Technology filters have been tested repeatedly on a flow bench and on a dynomometer against the leading competition's filter elements and have out-performed them every time. Based on these test results it's no wonder that the competition has taken steps to duplicate Injens filter design utilizing their techniques in molding urethane compounds.