A couple other forums are saying that GDE has been shut down, until they get the green light again from the EPA.... If they ever get the green light again!! I am not a guy who cares what tune you have, believe in, or have an axe to grind with any company. With that being said, I HATE seeing this. Good company, that makes a good product, and now they limit our choices to what we can do to our trucks after we purchase them. They could care less, that all the emissions junk they put on our trucks affect the longevity of them negatively.