It can scan our car just like a basic scanner and you can tweak with stuff like gas gauge reading backwards and just small stuff. But it won't tune our cars. IMO its a waste to have if you drive a grand prix. I would for sure invest in a HP tuner! Also its not just a LS1..it can tune g6 lol! Its just more base around bigger motors or LSX motor! But there is some smaller V6 it can tune.
EDIT: Also just seen you have a 03..I really don't know if it will read your car. I do know it read my friends 06 and my 07.
Originally Posted by SlowM90
