For G30 G31 520d 520dX 7 G12 ,Material: Rubber, Flexible and expandable: this induction tube air intake pipe has a spring-like design that allows it to easily bend into any desired shape and to any desired degree. Package Quantity: 1 x air intake hose ,Main function: the inlet hose of the air filter is equipped with a better air filter function that can be used in your engine system, so you can use it with confidence. The design of the intake manifold is designed to store a large amount of fresh air, which can effectively improve the frustration caused by insufficient intake air under normal oil return conditions and make driving quiet. Precision injection molding perfectly replicates the original hose's contours, bending angles, and connector dimensions. All intake hoses undergo rigorous airtightness sampling testing., Manufacturer: TRFBD