I would like to hear from people who are running the crackles tune. I am running it on the stock dp and I want to know how long I can expect the cat to live if it does anything at all. I've heard that it will damage it and that it would barley have an effect on the dp. Since i'm living in Commiefornia I kinda don't want to risk running a full catless dp. Are the high flow dp's okay with this tune? Sorry if this has been asked a lot I just want to get a clearer idea of the effects it has.