hey new user and new to subi's bought a 06sti it has 90k and not my dd i have cobb v3 and staged 3 i guess you call it with custom tune only running 280bhp but i noticed some of the signs of a bad headgasket i put rad and thermo water pump and timing belt were done about 70k according to the dealer records but it burns some coolant. i did a cheap pressure test using one of the coolant lines only up to 10psi and noticed a few bubbles from the pass side head so think ima take in to a shop here near sacramento ca. i didn't really wanna do a motor build as i haven't paid the thing of but if they have to pull the motor i feel like i should do something more. for now i think 400hp would be fine seems to be a lot of threads about ringland failure and going to arb studs. just wondering how much $ im looking at or what else i should being doing with the motor out?