I posted a few weeks back about z1 vs Godspeed intercoolers. The vast majority recommended a pair of used stillens. I was able to pick up a set off another member & they arrived yesterday. They are in great shape. Waiting on a set of ducts to come in. Also get to repull my plenum & replace a burst water line I overlooked last week. Such good luck.
New to me stillen intercoolers - Bigmatthew8610:38:46 07/16/17