The MagnaFlow 1955-1957 Chevrolet Bel Air Street Series Crossmember-Back Performance Exhaust System 16792 brings enhanced engine sound and dyno-proven performance to your 4.3L 4.6L 1955-1957 Chevrolet Bel Air with a healthy helping of our deep resonant signature exhaust note at Moderate exterior and Mild interior sound levels. Thanks to its durable corrosion resistant stainless steel design this Chevrolet Bel Air exhaust system will handle whatever tarmac you decide to leave your mark on. This performance exhaust kit features a crossmember-back layout designed to replace your Chevrolet Bel Air's exhaust system from the crossmember on back. With its fast-flowing mandrel bent 2.5in. main piping and 2 Straight-Through mufflers ending in a Multiple Exit Options exit with 2.75in. Polished Weld-On Single Wall Turndown Cut Edge tips your muscle car will be sounding as awesome as it looks. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 16792 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow's limited lifetime construction warranty.