This closure plate is used to close the connection for engine ventilation on the turbocharger. Ideal for the installation of a Catchtank system with external crankcase ventilation. Fits all VW Golf 5 & 6 2.0L TFSI, Audi A3 and all other 2.0L TFSI transverse engines 6061 aluminum alloy plate, CNC machined and black anodized. Manufacturer Information about the manufacturer BAR-TEK BAR-TEK Motorsport GmbH Im Rauschen Auel 3, 51491 Overath-Brombach, Germany info@bar-tek.com