Made by Airhead Parts / KGPR. This is the Intake Sleeve / Boot between the Air Fuel Meter and Throttle Body / Air Distributor Manifold. This part was discontinued by VW and very difficult to find, so we took the couple of NOS examples we had and produced our own faithful copy.
Made by Airhead Parts / KGPR from high quality Viton Rubber for best engine compartment heat resistance. We guarantee it for life.