You referring to the stock sub? Dont know the break down in watts as the amp powers 7 speakers,,the amp itself runs around 250w..upgrade by covering box with a deadener and fill it with polyfill..made a world of difference..otherwise tap into the sub wires and add a small amp and sub/box. Can also use a shallow sub for a replacement but without a decent amp it won't change too much. Stock is only an 8" paper cone.