Volkswagen 2.0TFSI PCV Delete Plate KitThe stock PCV on the TFSI engine is quite fragile and over time, or when running lots of boost, the diaphragm inside can rip which can result in excessive blow by entering the inlet manifold at idle (smoking from the tailpipe) or a loss of boost when driving, which can cause other problems. But if you want a cheaper and simpler solution, you can delete the PCV and divert the breathing to the rear cam cover outlet only, by using our PCV Delete kit.