Last week I installed the Banks Economind and Boost tube. I really didnt have an extra $400+ at the moment to shell out for their intake/ram air setup. I have a K&N already installed and was told that I would be better off just putting the stock filter back in than to run the K&N. They said the K&N messes up the MAF sensor by allowing too much air to pass it and their product rotates the sensor and fixes that problem. I cant remember their exact words but something along the line of "air hits the sensor too fast and causes the engine to think its getting too much air and it does something to counteract the increased air." Is this just a mind game to get me to spend more money or is there some truth to it? I really dont drive the truck hard and bought the set up to increase fuel economy. I realize there is always room for improvement but I have a hard time believing that under normal driving conditions that the stock air box and a K&N is not enough airflow. If a motor is increasing horsepower there IS increased air volume, even with the stock filter, thats just plain physics. If it is true about the MAF sensor, is there a way to rotate it yourself to solve the issue? Necessity is the mother of all inventions. Thats my rule. If I can do it myself...why not!