Feature: *Function The function is to control the length of the intake manifold. The intake pipe is extented to facilitate the increase of eddy current and ensure the intake stabilization. *Superior material Made of superior material to ensure its long service life and high durability. *Direct replacement Simple installation with direct replacement ,other modifications are not required. *Note Please ensure that the model of the part,connector and plug on our pictures are the same as your old products before ordering to avoid the wrong purchase. All products are 100% tested before shipment for quality assurance. Specification: OE: 11747626351 .