I have a 2002 GT with 140k miles on it. Never had a hiccup. I dont have any wierd fumes coming from the exhaust either. Clutch is fried but what do you expect from a factory clutch. The modulars are known for being exceptionaly reliable. If you include cams as bolt ons and have all the basics such as CAI, off road exhaust, tune, etc. you can expect around 300 rwhp usually. If the motor is worn and hasnt had the best maintenance then slightly less than that.