Magnaflow Street Series SS Cat-Back Exhaust Dual Split Rear 4in | Chevy Silverado 2500HD (19027)The MagnaFlow Street Series Cat Back Performance Exhaust System 19027 brings out the personality of your Truck with our signature resonant, powerful engine tone and dyno proven performance. Thanks to its fast flowing, mandrel bent 3. 5in. main piping and 1 Straight Through mufflers ending in a Dual Split Rear exit with 4in. Polished Clamp On Double Wall Angle Cut Rolled Edge tips, this Truck exhaust kit has the performance chops to match its sporty