A noise filter of the present invention includes an inductor and a resistor connected in parallel with each other. The sliding mount adapter device generally includes a base member, a guiding member, and a sliding member. The base 10 is secured to a stable surface by fasteners 12. The method also monitors DPF outlet temperature if the DOC is operating at or above the threshold efficiency and determines a DOC temperatureDPF outlet temperature difference. The first and second heat dissipating layers connect with the first and second conductive members, respectively.