well the catch can should already have the nipples, usually they're 5/8, so you'll need some 5/6ID hoses, as for the fitting to your intake, i have a GReddy suction kit that already had it, as well as a BOV recirc fitting.. stock intakes also have the nipple for the line as well... if you have some random pipe, you'll need to either A. have one welded or B. drill and screw in a 5/8 nipple... pretty simple stuff really... here's a shot of the set up on my old car...







just kinda follow the same "diagram" as that... in hind sight, i should have ran the catch can on the core support, but i didn't for space reasons IIRC....