i have a 93 2.0t 2001, i am putting a new turbo on it and have mixed up the bolts for the water feed pipes to the turbo, most of the bolts have 4 holes in them but one only has 2, anyone got any ideas on which pipe this one goes in? thanks

 

the water pipes, join the center hub of the turbo a the sides, the oil input is in the middle top, a bugger to get to, and the oil return is underneath