so i bought this car about 2 weeks ago. its an 06 sti. i really know nothing about them. i love the car to death and seems to run good but i have never been in another one to compare it to. but someone told me that it should be pushing 14 or 15 psi stock. and i'm only pushing 10. it never gets above that. the car has a turbo back exhaust and a turbo timer... should it be pushing more? i don't even know where to start. help!