In 1976 Howe introduced the first aftermarket panel made specifically for stock car racing for the Camaro. Thirty years later Howe is the first to produce a Duct Work System made specifically for IMCA / UMP style modifieds. The Howe system is made in three separate pieces that can be used individually or in combination. The system is made to fit large or small GM Metric frames as well as the popular 70-72 Chevelle. The Howe panels are made with flexible poly-propylene for durability.

The Base Pan is to be used primarily in asphalt applications to replace the time consuming and easily damaged custom fabricated aluminum ducts.

The Inlet Valance is made to be functional and good looking. For asphalt applications the molded grill opening can be cut out for a screen to be installed from the back side without a trim ring. For dirt applications the air can be taken from underneath.

The Duct Lid fits tightly to the Base Pan or can be used independently. The lid ties in the space between the Inlet and the hood. The Lid is designed with raised ridges on the outside edges to add strength and has an intake indention molded in the center as an optional second inlet. Both the Lid and the Inlet panels are available in popular colors; the Base Pan is made
in black only.