All BBK cold-air-induction systems utilize a high-flow washable conical cotton element filter and most are designed as fender well units to maximize performance. In addition to their standard hand-polished and chrome plated systems, we carry a variety of kits utilizing a custom designed lightweight aluminum inlet casting which is hand-polished and chrome-plated. These trick castings deliver unmatched quality and a custom fit for a variety of auto and truck applications.