[dvldoc]

Honestly there is so much pressure at the nozzle and CFM volume of air that aiming is not needed It just needs to be in the pipe before the throttle body. You will see what I am talking about when you test spray your system. After looking at it again i would mount the nozzle after the coupler. Just sure you mark were the couple stops at and put the nozzle about 1/2 to 1 inch after that, Yeah your probably on the metric system lol.