Robbietek

Thank you, but no there is no adjustment on the valve. It came from a RB270 which had been rolled to death, after it had been mapped up to 320 bhp. The valve itself was only three weeks old. My wifes WRX is the baby one with 225 horses, will it be developing enough turbo pressure to throw the valve? Am I just better telling her it's not possible?

I have a 2001 STI full metal jacket job with all the trimmings, my wife drives my old 2001 WRX, she wanted it to make a noise like mine so I bought and fitted a turbo dump valve........... no noise! what have I done or not done please?