Upgrade your Peterbilt 388 with these 6-inch fiberglass one-piece cab and cowl extension panels designed for 2011 and newer models. The gray primer gel coat allows for easy sanding and painting, while the sold-as-pairs set fits most Peterbilt 388 makes and models, as well as 389 2014-2017 short hood models with factory exhaust. These panels are practical, easy to install, and will enhance the look of your truck. Please note that additional shipping costs will apply due to oversize shipping.