So I just installed a fmic on my 03 Gti 1.8t and when I get into it a bit, my baileys DV from Eurosport doesn't make it's typical "whoosh" sound...it's more of a two stage shutter. I swapped the spring out to a lower boost spring, same thing happening. When I get my install, I fixed the brake booster line, installed a catch can. I capped off the two ports under the intake mani... Also got rid of the black plastic box that sits on the valve cover and capped the hose for that. When I did my catch can, I caped off the extra hole that comes out of the side of my silicone TIP, near the DV. That's it... Ever since the install, it's been releasing pressure at a different tone than before. Does anyone have any idea as to why? Is it an issue or am I just worrying too much?
I'll post an engine bay picture in the morning