Silicone Intake Tube Fits Scion FR-S Toyota GT-86 Subaru BR-Z Red Agency PowerTurbulent air in a car or a plane is not something you want to experience. In a cars intake system, the smoother the airflow is, the more power an engine has because of these flow characteristics. Turbulent air can make the throttle body struggle to get in what it needs to push your vehicles engine to the limits. The stock intake hose between the throttle body and MAF sensor has 2 issues from the factory. First, is the corrugated part of the hose.