Consider that an internal combustion engine is basically a fueled air pump. When you can move more air and fuel in and out, you get increased power output. With the Rhino intake made to be more efficient, it was time to open up the exhaust end. Rigid has found the DMC Afterburner Quiet dual exhaust to perform great for their tuned performance package. The kit includes two T304 stainless header pipes, a pair of extruded mufflers, and all necessary mounting hardware.