For all the "nay" sayers, I just installed a 9 Drive on my 2011 RAM. First hand experience here... It works!!! Day and night difference from before the install. I bought this truck new and it always had a lag. Not any more! No lag what so ever. Let me be clear. This product, for a very reasonable price of $50, does not make the vehicle any faster. It takes the lag out and nothing more. Because of this, it may make the vehicle a little quicker, but that isn't it's intent. After doing research on the Pedal Commander and of course the price, I decided on the 9 Drive. I did not make a mistake. Best bang for the buck in my view.