There's only two connections on a intake. One is the PCV line and one is the MAF connector. The PCV line will attatch to the existing line in some form or fashion. The MAF will be transfered from your OEM tube to the aftermarket one, then the MAF connector will reattach to it. Depending on the intake you get, it should only take 30min to an hour. That's taking it easy too. Make sure you do your homework on the intake you want. There is a difference in the different intakes.