How much horsepower do you all think i can get out of my 03 gt with a turbo? *Completely stock* And also the car has 90k miles on it would that effect anything??
I personally wouldn't go over 400rwhp on the stock motor unless you've got cash for a rebuild. The Hellion kits are the best there is. They are a little pricey but they are simply the best. Can't go wrong.
read, read, and then read some more. When you think you know it all, read it all gain. I wouldn't boost my car until I had a full understanding of what all is happening and the horrible consequences when things aren't just right.
Any supercharger kit will meet the potential of the stock engine. Sounds like you need to do some reading first as it seems you are absolutely clueless