The uniquely engineered Vortex manifold allows smooth charge air and exhaust transfer while being compact and ensuring simple installations. Capable of 750 and up rear wheel horsepower! Retains factory exhaust brake. Allows use of factory emissions equipment on 2013-Up RAM pickups.Features: Lower EGT Increase in horsepower and torque Retain factory exhaust brake All hardware included Great for towing, racing and daily driving Works with emissions on Liter: 6.7 Liter Series: Aurora 5000 Sold As: Kit