The flow of air is not only limited to the outside of a car. To help improve the flow of air into the radiator, APR Carbon Fiber Radiator Cooling Plates can be utilized to channel the flow of air directly to the radiator.
APR Carbon Fiber Intake System Adapter Bracket for 2007-2016 Audi TT CI100020-D
APR Carbon Fiber Intake - B8 3.0T Back Tube Part #:CI100024
CI100038-A APR Carbon Fiber Intake Filter System - 2.5 TFSI MK3 TT RS/RS3
CI100055 APR Carbon Fiber Intake System - 4M/9Y 3.0T
APR Carbon Fiber Intake Filter System 2.5 TFSI For Audi RS3 / TT Quattro MK3