These naca scoops are used for drawing air into planes, boats, or autos. Vacuum-bagged, polycarbonate inlets for efficiently drawing air into planes, boats, or autos. Lightweight, strong and temperature resistant. 1-pc construction with no formed outlet. (Outlet may be added, or left open) Installation instructions included. 009MUA no outlet 1 piece design measures 6-1/2″ long x 3-1/2″ wide. Natural in color.