aFe 46-20384-B BladeRunner 3 IN Aluminum Hot and Cold Charge Pipe Kit BlackaFe 46 20384 B BladeRunner 3 IN Aluminum Hot and Cold Charge Pipe Kit Black Flow and Performance: Smooth transitions in the mandrel bent aluminum tubing decrease turbulence and minimize pressure loss, increasing horsepower and torque. Wrinkle Black Powder Coated Finish: Not only does the black powder coated finish make for a striking look, but it also insulates the tube from engine heat and protects from corrosion. Perfect Fit: These tubes include