Well im trying to go back to my stock air intake from an AEM CAI... i found a few diagrams that were pretty helpful in the forums. But there is still 2 vacuums that have me confused...can anyone help?

 

that is a single coolant line. The aftermarket intake probably came with a hose that you connect since you had to remove those hardlines pictured. remove the single hose that the intake came with, and put the hardlines in place. you'll need to make sure you still have the two rubber hoses that attach to the two ends of the OE hardlines though.