Perrin's Afta-Maf silicone airbox hose features 5-ply silicone construction. Replacing the stock corrugated rubber hose between the turbo inlet and factory airbox will allow for improved airflow due to higher internal volume and smoother airflow due to the smooth interior. This product is the perfect compliment to a Perrin turbo inlet hose. The Perrin MAF hose is designed for use with the stock airbox, but will work with any intake designed to use the stock rubber hose.  These are available in black or red; please select from the drop down.