Sounds almost like a cummins! Very cool setup, I actually considered doing a draw through on my wagon. If the hot-rod VW guys can get away with it, so can we right?!
I said the same thing to my friends when I first drove it. It does sound like a mini Cummins! Haha!
For my low boost, the draw through will work fine, and as far as intercoolers go, the world is my inter-cooler from November-March here in Minnesota.
There is no muffler on it, just the down pipe dropping out by the trans bellhousing. Surprisingly, it is not that loud and I love the sound! My grandfather would be proud if he could see his truck now:salut::)