aFe 46-20318-B BladeRunner 3 IN Aluminum Hot Charge Pipe BlackaFe 46 20318 B BladeRunner 3 IN Aluminum Hot Charge Pipe Black Flow and Performance: Constructed of 3" mandrel bent, powder coated aluminum tubing for maximum flow. The smooth transition bends decrease turbulence and minimize pressure loss, increasing horsepower, torque and lowering EGT's. Installs on the Hot Side to transfer heated air smoothly to the intercooler to accelerate heat transfer for better performance. Perfect Fit: Utilizes the factory