Windage Tray, Louvered, Fits Ford 4.6/5.4• Fits both stock* and aftermarket oil pans • Louvered design allows oil thrown from the rotating assembly to drain into the sump without splashing back, reducing the windage and increasing power • Features dual cylinder bank drain back for superior oil control and horsepower gains • Goes between the engine block and oil pan • Constructed out of 14 gauge steel with a clear zinc finish • Includes oil pan studs and nuts *On some Mustang Cobra applications, diverters in factory oil pan and oil pump pickup need to be trimmed