Hey guys... im the new owner of karls 33,
the GT-RS is an awesome piece of gear, even though mine only has 300hp atw, you have drive a car with one to know how good they are.
i jus recently reced a mates wrx thats done mid 12s on the quarter and stayed door to door with him on the roll at 70kp/h. STOKED!!!
not sayin its the best turbo in the world but u definatly shouldnt overlook it.
good luck with your search dude.