Tenneco Inc. designs, manufactures, and sells clean air and ride performance products and systems for light vehicle, commercial truck, off-highway, and other vehicle applications worldwide. The company offers various vehicle emission control products and systems, including catalytic converters and diesel oxidation catalysts to reduce harmful gaseous emissions; diesel particulate filters; burner systems to combust fuel and air inside the exhaust system; hydrocarbon vaporizers and injectors to add fuel to a diesel exhaust system; and lean nitrogen oxide (NOx) traps, selective catalytic reduction systems, and alternative NOx reduction technologies to reduce NOx emissions. It also provides mufflers and resonators to offer noise elimination and acoustic tuning; exhaust manifolds to collect gases from individual cylinders of a vehicle’s engine; pipes to connect various parts of an exhaust system; hydroformed assemblies; hangers and isolators for system installation, elimination of noise and vibration, and enhancement of useful life; and aftertreatment control units. In addition, the company provides ride performance products and systems, such as shock absorbers; struts; vibration control components; Kinetic suspension technology, a suite of roll-control and nearly equal wheel-loading systems; advanced suspension systems; Kinetic H2/CVSA semi active suspension systems; and other ride performance products comprising load assist products, springs, steering stabilizers, adjustable suspension systems, suspension kits, and modular assemblies. It sells its products to original equipment vehicle designers and manufacturers, repair and replacement markets, and aftermarket under the Monroe, Rancho, Clevite Elastomers, Marzocchi, Axios, Kinetic, Fric-Rot, Walker, XNOx, Fonos, DynoMax, and Thrush brands. 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.