Bests & Worsts Reviews from Amazon

I returned mine because their customer service wouldn't provide the color code needed to install it. I researched these so called programmers and this is what I found. They tap into the IAT sensor ( intake air sensor) and trick the computer into thinking the air is cold. In response the computer sends more gas to the engine. This effect is not permanent and eventually the computer adjusts to compensate for it. Actually your vehicle will use more gas while only gaining minimal h.p. gain, somewhere around 2-3 h.p. These are a waste of time and money and could possibly lead to permanent damage to your motor. Look them up on YouTube and you'll see what I'm talking about.