BBK Chrome Fender well Cold Air Induction Intake System for Ford Mustang GT 4.6L 2V for all BBK cold air intake systems utilize a high flow washable conical cotton element filter and most are designed as fender well units to maximize performance. In addition to the standard hand polished and chrome plated cold air intake systems, BBK now offers a variety of kits utilizing a custom designed lightweight aluminum inlet casting. It is hand polished and chrome plated. These trick castings deliver unmatched quality and a custom fit for a variety of auto and truck applications.