ttz

Why is it that every vid of a rear mounted vette sounds exactly the same when the blow off valve vents? I just finished my rear mount setup and use 2 type-rs BOVs and it sounds identical to every other one I've heard. I have the type-rs on other turbo cars of mine and it sounds completely different, yet on the vette it sounds like those running 50mm BOVs or other sizes and brands. They seem to make a "browm" sound instead of a usual "pshhh" like on other cars. Here's the sounds I'm talking about I almost wonder if its more of a form of compressor surge, rather than the BOV. I know compressor surge usually has the flutter sound, but I can't seem to think of any reasons why all rear mounted vetts' blow off valves would sound the same regardless of brand or size or design.

ttz

Any ideas?