I've got a 2012 ram with 200,000 on it, did the delete at 120,000 I use the h&s mini max , installed it when truck was new but ran it in factory emissions mode until the 12,000, have had no issues with it, on our fleet trucks that are rams , I would do the ccv filter at the 60,000 mark , but wait and do the the egr cleaning till the next go around at 120,000 , so far has been working out , we have a good sized fleet of them too. Tried a race me in one to save money, and it works, but it does cause problems about every 2 months or so