A communication system and method for using a communication system is provided. Also disclosed are methods of treating RSK2 regulated disorders using compounds of the invention. The Performance Grade sulfur-extended asphalt binder composition is made by combining free or element sulfur, a linear alkane material, optionally a saturated-backbone polymer modifier, optionally a non-aqueous acid, and a base asphalt. An exhaust control cap is carried by the processing chamber and includes a bottom wall, a top wall, at least one intermediate wall between the bottom and top walls, and a side wall coupled to the top, bottom and the at least one intermediate wall to define stacked exhaust sections.