Tenneco Inc., together with its subsidiaries, designs, manufactures, and sells automotive emission control, and ride control products and systems worldwide. Its emission control products and systems include catalytic converters and diesel oxidation catalysts, diesel particulate filters, burner systems, hydrocarbon vaporizers and injectors, lean nitrogen oxide traps, selective catalytic reduction systems, mufflers and resonators, exhaust manifolds, pipes, hydro formed assemblies, and hangers and isolators. The company offers its emission control products under the Walker, Fonostm, and Gillettm brand names. Tennecos ride control products and systems comprise shock absorbers, struts, vibration control components, suspension systems, and other products, such as load assist products, springs, steering stabilizers, adjustable suspension systems, suspension kits, and modular assemblies. It offers its ride control products under the Monroe, Rancho, Clevite Elastomers, and Fric Rottm brand names. The company serves original equipment vehicle manufacturers, and the repair and replacement markets. It markets its products through distributors, jobbers, installers, and retailers, as well as through skilled engineers and program managers. Tenneco has a strategic alliance with Futaba. The company was formerly known as Tenneco Automotive Inc. and changed its name to Tenneco Inc. in 2005. Tenneco Inc. was founded in 1987 and is based in Lake Forest, Illinois.