I don't like tuner chips, all they do is jack your ignition advance so you have to run premium so it won't ping. They make power, but aren't worth it to me by themselves, now if you go blower or turbo, computer mods are required to make it run right.
Im actually looking to make my truck quicker. Its kind of sluggish. But, I want to be able to sit at a light when someone wants to race, and have something thats worth racing.