love de turbo
love it i love it i love it!
That's definitely compressor surge. That tial probably has a really heavy spring to handle the 40-50lbs pushing through that beast of a motor. So, at low boost levels, it probably surges. It's an all or nothing issue at that point. But since I highly doubt that car is daily driven on that setup, it's not that bad.
Not a BOV, compressor surge.