Hi guys, Just installed the dump valve from forge. Everything is installed right and when letting off the boost I get the tishhh but I also get a low deep sound like someone is blowing their nose, or a vibration like sound. I have tried the yellow springs and the blue springs and I am now going to try the green. Anyone any ideas on what this could be ? I was thinking it could be turbo stall because of the spring rate being too high but I thought that sounded more like a pigeon ? Any help on this would be appreciated. Or if anybody knows of anyone who could take a look at it near Manchester. Thanks Matt
