MagnaFlow Stainless Cat-Back Exhaust 2015 Chevy Silverado 2500HD 6.0L Dual Split Rear Exit 4inThe 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