The present teachings provide for an exhaust system device including a substrate body, a pair of electrical leads, and a resistance heating element. The substrate body can include a plurality of first walls that can extend between an upstream end and a downstream end of the substrate body. The substrate body can include a plurality of second walls that can be transverse to the first walls and can extend between the upstream end and the downstream end. The first and second walls can define a plurality of channels. The pair of electrical leads can be configured to be coupled to a power source. The resistance heating element can be disposed within or on at least one of the first or second walls and can be electrically coupled to the electrical leads to receive power from the electrical leads.