Patent ID: 7938225

Claim:
An apparatus for reducing air induction noise of an air intake of an engine of a vehicle, the apparatus comprising: an elongated monolithic hollow air duct molded from a single material, that is symmetrical about its longitudinal axis, the air duct capable of accepting air into a first duct end, past a midpoint duct portion, and out of a second duct end, wherein the midpoint duct portion has a midpoint duct portion wall thickness less than a first duct end wall thickness and a second duct end wall thickness, having a transition between the wall thickness at the first duct end and the midpoint duct portion and the second duct end and the midpoint duct portion of a gradual taper, the midpoint duct portion having more radial flexibility inward and outward from the longitudinal axis, relative to the first duct end and the second duct end, the radial flexibility decreasing gradually from the midpoint to the first duct end and the second duct end.