Carbon Fiber Maf Tube. The new carbon intake tube replaces the stock rubber tube and in doing so smoothens the path from the filter housing to the turbo inlet. The carbon tube integrates a CNC machined MAF sensor mount so there are no further interfaces after the airflow leaves the filter housing. The tube provides a more gradual change in direction from the filter to the metal turbo inlet tube as compared to the stock rubber tube - this increases the flow efficiency further. Here is a comparison between the stock and carbon tubes. *By request/order.