Pillager's alter ego!
I got the Synapse BOV and installed it this weekend but I think it is causing compressor surge. I've gone through all the threads on that but I'm still not sure. It's installed as directed using the same connection the stock BPV uses. I also have the block off plate on the stock BPV location. I've checked the connections and even swapped the vacuum hoses. Any ideas? I also installed the AEM digital boost gauge and it reads -6hg while powered on with the engine off. It also reads this way with the vacuum/boost connection disconnected. At idle it reads -22 to -24hg. The video below is of the noise I'm getting. I filmed it while backing down the driveway and back up. Only seems to happen when I'm not WOT. At WOT everything seems fine.