I have a 2003 WRX with about 62k miles. As I was driving last night, when the car was in 3rd, I was flooring it a little bit and if I remember correctly I heard a loud thump and my car went out of gear. Afterwards it was impossible to get the car back into any gear. My friend said it could be my hydraulic clutch cylinder. The previous owner installed an aftermarket racing clutch, which I know have shorter life spans, so does my clutch sound like the problem here?