I just installed my external wastegate, but I don't know where the two lines are going to. On the internal gate, the vacuum line went to my boost controller. So im sure one goes there but not sure about the other one. Any help would be appreciated. I ran a hose from the bottom nipple on the wg to the EBC solenoid.

Another question. What is it supposed to sound like? I test drove it and as soon as it got into boost, there was a very loud, almost grinding sound. Also, it was overboosting pretty bad.