i have a 02 wrx with helix turboback, and on thursday i noticed my turbo was not spooling, i did not hear the wistle i normally hear under moderate acceleration, so i punched it and the car didnt budge, its like there is no turbo at all! the car has ran great ever since i got it and now it wont spool at all!! i have no idea what this could be, if anyone has any idea of potential problems that could happne with these results please let me know!