bubble arch

simple question chaps, My car makes a mooing sound at about 3000rpm.I believe it's the dump valve but where is it.? The more I read the more I'm confused.
On a 97 turbo is it the large black plastic fitting under the drivers side of the intercooler with 2 larger diameter pipes and a much smaller one on the bottom OR is it fixed directly to the intercooler front edge ???

thanks

GC8

Mooing is pretty cool; the best one I ever saw involved a duck call though... REV.....REV..... Quack !

andythejock01wrx

laughed out loud !!

stisye

yeah mate its bolted to the front passenger side of the intercooler with a small pipe going to the front and a large pipe at the bottom going down under the manifold!

sye

bubble arch

Thanks very much sye. So what is the black plastic job under the intercooler then ????