I have a stock 98 grand prix gt. I want to get rid of the top speed limiter and thats about it. raising shift points would be ok too. my friend has a 98 grand prix gt too and he wants the same thing. a tuner that we could both use and split the cost would be the best, but i dont want one i have to have a laptop to tune my car. In the future i will do an u-bend delete and a cone air filter, so what will the best tuner be for me....what is the intense or overkill pcms also?
thanks a ton