Direct-fit and universal styles available. 90% coverage for domestic and import passenger cars, light trucks and vans. Engineered to perform like original equipment for maximum sound control and back-pressure performance. 100% aluminized components for extended life. Extensive use of patented Single Cartridge Muffler Design. Full-sized original equipment cross-sections, quality construction. Thick, expandable aluminized necks provide longer life and easy sizing. Hundreds of direct-fit mufflers feature welded brackets to reduce installation time and to meet original equipment fit and appearance.