What's up with the DEF Delete?

way2roll wrote:
In my search for a truck it seems like any 2015-2016 F350 SRW is gone the day it hits the lot. I did find a very nice lower mileage in great shape but the salesmen told me it had the DEF delete done. From what I understand it removes all the mechanical parts for the DEF and re-programs the computer. He says it's a service his shop offers and has become fairly popular. Claims to still pass emissions etc but offers better MPG and HP, but frankly, it makes me nervous. I feel like I'd rather have a stock truck. I called my mechanic and he didn't know much about it. Is this something to stay away from?

The biggest thing that comes to mind is engine warranty. I bet any engine repairs needed would be denied any warranty claims. I also doubt what the salesman said about their shop doing DEF deletes. Assuming you are at a Ford dealer, any emmissions alterations could cost the dealership tons of money from fines imposed by the EPA and could jeapordize his franchise with Ford.