My 2015 ram 3500 Cummins 350000 miles. I experienced extreme power loss. I I diagnosed my DPF codes by 1st changing field filters, waste of time . I then continued to diagnose a plugged SCR would showed no visual problems and also to a pluged DPF. I then found a take off pair on eBay with 6000 miles from a trustworthy seller that I was able to adapt to my Mega cab truck. I wanted to stay with the emissions on the exhaust because I expect it to be something to be inspected at some point and I also understand there is very little mpg gains with a deleted system. My truck had the original SCR replaced under warranty recall at approximately 170,000 miles. This makes me think their life may be limited to that number. If you own a RAM please please use FLUID FILM rust inhibitor. They are terrible from mexico and this product will keep them the grest truck they are.