A muffler is a device used in vehicles to reduce noise produced by the engine. It is a part of the exhaust system and helps decrease the loudness of the engine's sound. Full definition
Competition Core Stainless Steel Round Polished Exhaust Muffler with Double - Wall Tanabe Angle Cut Tip (2.25» Center ID, 4.5» Center OD, 14» Length) (carid.com)
Universal Stainless Steel Round Chamber Bi-Direction Polished Exhaust Muffler with Straight Cut Tip by MagnaFlow ®. (carid.com)
DynoMax Performance Exhaust: Dyno - proven, power - enhancing exhaust systems and components and a complete line of mufflers for a full range of domestic and import passenger cars, light trucks, Jeeps and SUVs. (sema.org)