The ports on the side get hooked up somewhere on the output side of the turbo(pipe to or from intercooler or the upper plenum) these ports respond to boost by opening the gate the ports on the side get hooked up to the output of your boost controller this basically makes the air from your controller hold the external gate closed by fighting its opening. You need to get an input to your controller. Since it's Twin Turbo you should T-fit it like in the manual. .8 psi is also what a TD05 equiped Z will boost to if there is a leak somewhere, TRUST ME I know this from experience with the Greddy stuff. So once you know you have everything hooked up right and programed right check for leaks at the gates. I also had one of the hex bolts that greddy uses to plug the alternate input port come off and make the gate leak. That was when I was running like 26psi though. Good Luck HAVOK
