hp chip

I have a 97 chevy cavalier rs with a 2.2 and five speed. I got one of thoes "20hp resisters". Do thoes really hurt your car? I can tell a huge difference in power. But i hear they can hurt you motor. Is this true?

yes, absoluetely, they give your engine more fuel but your engine has nothing to burn that extra fuel, so carbon deposits keep building up on your valves and you lose way more power then you had to begin with