AWE 4.5" S-FLO Closed Carbon Intake System for Audi RS 3 / TT RS2660 15050 S FLO Closed Carbon Intake System: The S FLO Closed Carbon Intake System combines each component of the S FLO suite and adds a bespoke carbon air box. Spanning the entire width of the grille, the S FLO Closed Carbon Intake is capable of collecting all of the ram air from the front of the vehicle to feed it into the S FLO Filter. Thanks to the 2x2 carbon fiber construction, heat soak is subdued during hard driving while the increase in air