This Dodge Cummins DPF Diesel Particulate Filter 52122429AL is a perfect fit for your Ram 6.7L from 2011-2012. The filter is brand new and comes with a direct replacement fitment type. It is a high-quality Mopar product and is ideal for those who are looking for an effective and efficient filter for their exhaust, I have 4 of these so message me if interested in more then 1