i picked this car up from a subaru dealership jan of last year with 24k on the clock one owner before me no idea if the guy ran the car hard or not never had any problems with the car til now.
the only thing when i got the car was it had a spacer on driver side of the rear wheel and nothing on the other wheel and a slightly warped rear rotor
because i dont drive the car hard or much besides to work i did not notice this til months after.
i know adding more power to the mix will pull any problems to the top and i guess for me its bad piston rings