ebay is your best bet BUT the max inlet/outlet size is 15mm and the stock VW piping is 19mm I/D
so you will either need a company to make you some inlets that replace the 15mm standard ones and then you can use various tubing, I chose the one that was designed for oil but some dont, and you run a piece from the rocker cover to one of the inlets and then a piece from the puck that Ts into a piece to the oil breather under the inlet manifold and run the remaining piece back into the other inlet on the catch can.