Sorry that im a hard core car noob... but I do have a question about all of this... I got a rental PT turbo high out put today as my loaner car while my brakes were getting put on... and HOLY that turbo really does move! I never wanted to push my mom's exact same PT to the max i did with this... but my friend and I were SHOCKED at the output of this engine + turbo!!!! Why can't the Xfire have a turbo package? is it because of stability in the engine? will it blow the seals and what not? ... cuz it seems turbo is easier to hook up and may not produce as much as the Supercharger... but it sure sounds hella bad *** when it really takes off again... sorry for the question but I know maybe people on here are WELL informated about these things