I have heard the iceman intakes are better because they are not metal, therefore do not conduct heat as much. But then again the AEM is coated with something that prevents heat conduction too...Even my short ram, I can drive for an hour and pop the hood and touch the intake, its warm but not too hot to touch. Just depends on what appeals to you. You could also buy a cheapy one, they work just fine and you can save yourself 150 bucks.