MagnaFlow Sys C/B 67-72 GM F-Body 3inch StdThe MagnaFlow Street Series 15899 brings enhanced engine sound and dyno proven performance to your muscle car with a healthy helping of our deep, resonant signature exhaust note at Agressive exterior and Moderate 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 features a crossmember back layout