Injen 91-98 240SX 16 Valve Requires IS1900 IS1905 or IS1920 Polished Short Ram Intake Air ExtensThe Injen IS Series is a traditional underhood intake system that is placed in the stock location of the factory air box system. Each system is built from 6061 T 6 aluminum alloy to ensure the lightest design possible. Every IS system is certified or pending by the California Air Resource Board and backed by Injen Technologys limited lifetime warranty. REQUIRES IS1900,IS1905, OR IS1920. This Part Fits: Year Make Model Submodel 1991 1993,1995 1998