I think compared to usual stock street cars a gtst skyline is relatively quick but considerrably laggy cause of weight. Mine is stock with pos and turbo back exhaust. I am considering getting a computer, cooler, and boosting it but i dont want to wreck the car. I keep getting told that when boosting a car u dramatically decrease the life of your engine and in some cases totally stuff it up (lean out). what u guys think? who has run high boost on stock internals and how long did your engine last?