as of about 3 days ago my car was running fine. now it still runs a dream and its boosting perfectly fine like it always had. but now for some reason and only when its under load when it boosts it makes a hoover like noise which is noticeably loud and never happened before. been the garage and had all the boost pipes and everything checked over and there all fine. the noise doesnt happen at idle when you rev it only when driving under load. they seem to think my turbos on the way out at the garage just wondering if anyones had a problem like it before?