MagnaFlow Sys Cat-Back 68-72 GM A-Body Chevelle etThe MagnaFlow Street Series Crossmember Back Performance Exhaust System 15894 brings enhanced engine sound and dyno proven performance to your muscle car 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 exhaust system will handle whatever tarmac you decide to leave your mark on. This performance exhaust kit