aFe 46-20208-B BladeRunner 3 IN Aluminum Hot Charge Pipe BlackaFe 46 20208 B BladeRunner 3 IN Aluminum Hot Charge Pipe Black Flow and Performance: Constructed of 2" into 2 1 2" mandrel bent aluminum tubing for maximum flow then powder coated wrinkle black for heat and corrosion resistance. The smooth transition bends decrease turbulence and minimize pressure loss, while increasing horsepower and torque. Installs on the Hot Side to transfer heated air smoothly to the intercooler to accelerate heat transfer for