The AP Exhaust Technologies 700403 Exhaust Muffler is a direct-fit MSL Maximum muffler designed for 2.4L 4-cylinder engines. Constructed from 100% aluminized steel, this muffler ensures enhanced durability and resistance to corrosion, extending its service life. Engineered to perform like original equipment, it offers optimal sound control and back-pressure performance, contributing to a quieter and more efficient vehicle operation. The muffler's design includes thick, expandable aluminized necks, facilitating easy sizing and installation. This feature streamlines the replacement process, reducing downtime and labor costs for fleet operations. The AP Exhaust Technologies 700403 Exhaust Muffler is compatible with various vehicle models, including the 1998-2000 Nissan Frontier, both RWD and 4WD variants. By choosing this muffler, fleet managers can ensure their vehicles maintain peak performance and compliance with noise regulations, thereby enhancing operational efficiency and reducing maintenance expenses.