The banks power elbow assembly is the ultimate downpipe upgrade for your late 1999.5-2003 7. 3l ford powerstroke f-250 or f-350 pickup truck. Removes the final restriction to power. Banks power elbow assembly slashes the stock outlet and pipe backpressure by 40 percent. With banks 4 in. Monster exhaust. Featuresremoves the final power restrictions from the turboslashes the stock outlet and downpipe backpressure by 40 percentincludes 4 in. Monster top turbine-outlet pipe and mounting hardware.