You want the best exhaust available for your vehicle, and MagnaFlow delivers the best with their Pro DPF Series Performance Exhaust systems. Backed by a lifetime warranty and made from 100% stainless steel, MagnaFlow Pro DPF Series exhausts offer a muffler-less design and a mirror-polished welded intercooled tip. This system is emissions legal. It will not affect the emissions of your truck in any way.