Altima 1998-2001 4 cyl 2.4L Injen Short Ram Intake with Heat Shield. Black Finish. Carb Approved. 50 State Legal. CARB EO#D-476-3 Reusable air filter. Simple bolt in installation. The Black finish is a Discontinued color. Standard finish is now only Polished. Picture not actual product. IS1970BLK The 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 Technology?s limited lifetime warranty.