Hi, I bought one of these the other week from the shop but didn't get any instructions. I know one side is plumbed to the actuater and the other side to the turbo, but does it matter which way round it's put? As there seems to be a one way valve in there when I was sucking and blowing through it
Boost source (i.e. manifold, turbo, etc) goes to the side in-line with the bolt, the actuator/wastegate goes to the side that's 90 degrees to the bolt. Screw it out as far as possible (couple of turns of engagement) to begin with, and screw it in to raise boost.