The Unitronic Air Duct takes advantage of the large opening in the OEM grille. Thanks to its smooth transitions, it draws massive amounts of air straight to the Unitronic Airbox without turbulence. The Airbox (which is shared with other B9 2.0TFSI and 3.0TFSI applications) takes full advantage of the available room in the engine bay to maximize the air being fed into the turbochargers. As with our popular 2.5TFSI EVO Carbon Fiber Intake System, this Airbox features diagonal slits which enhance turbocharger induction sounds and DV recirculation sounds with drainage provisions for water ingress.

This offers superior flexibility over traditional silicone, with its clever design, rigidity, and strength to be highly reliable on the 2.9TFSI engines. Taking the design and engineering one step further, Unitronic engineers created a design allowing smooth, laminar airflow on the inside walls while maintaining flexibility through a non-collapsing structural rib profile. Unitronic EPDM couplers are designed to align perfectly with the bead rolls on the carbon fiber tubes to ensure a perfect and seamless connection; hose clamp guides ensure perfect alignment.