Material: The air intake hose is made of rubber. It's durable and long-lasting。 This hose features a four-layer reinforced silicone construction for enhanced durability and strength. The multi-layer silicone ensures the hose can withstand high pressure and high temperatures。 7P6122101M Coolant Water Pipes For Touareg 3.6 7P6122101M 7P6122101L 7P6122101L Features: The intake hose's corrugated design allows for slight relative movement between the two ends effectively counteracting vibrations. Function: This intake duct features an airbox design that stores large amounts of fresh cool air preventing blockage caused by insufficient air intake during oil changes significantly improving driving smoothness and safety., Manufacturer: Coonig