[sleepydsm]

They're either for the Turbo Coolant Lines or the Oil Filter Housing, it's been awhile so I don'r remember. Your OEM turbo is going to have two oil lines (a feed and a drain) and two coolant lines (feed and drain), and the Oil Filter Housing (Where you literally screw the oil filter on) has a Oil cooler built into it that uses coolant. There should be two coolant lines running to and from the oil cooler.

There is supposed to be an OEM coolant hardline that goes behind the turbo which seems to be missing on your car.