Question for Sheepdog BOV on 13B

[PercentSevenC]

There's no BOV that makes that sound. It's probably not going to cause catastrophic failure of your turbo, and in fact there are those who would debate that it's even necessary to run a BOV at low boost levels. But compressor surge does put stress on the turbo's thrust bearings and could cause accelerated wear. Plus, venting the correct amount of air reduces lag after shifting.