If your going to do something, do it right the 1st time, or it will cost you dearly later. I say no, dont do it. If it really did all the things it claims, it wouldnt only be $32.99. And if they make a custom chip for you is it the same price? If it sounds to good to be true, it probably is. Dont waste your money, save and get a tune. Are you sure the reason your car is running lean is because you need a tune? If not, you need to find out why 1st.