This closure plate kit allows the removal of the entire secondary air injection / combination valve system, including the large secondary air pump. This plate closes the connection from the secondary air system to the cylinder head. This results in a much tidier engine compartment as well as less tangled wires. Fits all VW Golf 5 R32 engines. Plate made of 6061 aluminum alloy, CNC milled. Manufacturer Information about the manufacturer BAR-TEK BAR-TEK Motorsport GmbH Im Rauschen Auel 3, 51491 Overath-Brombach, Germany info@bar-tek.com