glen youn are full of your self you dont need to act like you know it all because you dont matter of fact no one does yes we all know aem is a good product and that most aem tuners are not as good as you BUT for nissans you would have to be a complete dumbass to waste your hard earned money on aem when you can get a rom tune that is just as good if not better for a fraction of the cost i have only had rom tunes on my car so i can not compare but i also have no reason to want to switch my sr is making over 350 wheel hp on a stock motor for over 40 thousand verry hard miles with absolutely not one issue now on the other hand i have atleast 10 friends mostly dsm owners that are running or have left aem all of wich have complained about their aem i personally know of no rom tune owners with ANY complaints