Bassani Manufacturing 1F57DNT5 4in. DNT Megaphone Muffler with Acoustically Tuned Baffle - Chrome with Black Polished End Cap , Color: Chrome, Material: Steel Feature 16-gauge steel construction throughout Specially designed 3-stepped baffle that is acoustically tuned to deliver a unique deep and throaty exhaust sound while providing maximum performance Include new-style billet end caps with internal machined flutes Available in chrome and black finish Sold in pairs