The S&B Cold Side Intercooler Pipe replaces the failure-prone OEM intercooler pipe that is known to burst and leave you stranded. Larger than stock 3.50” diameter polished aluminum CAC pipe. Stronger 5-Ply Aramid Reinforced Silicone Hose. Less Restriction. Improved airflow. Better performance. 2-piece design for easy installation. Replaces BC3Z-6F073-D Carb exempt id: D-590-42, D-590-49Street legal in all us states: Yes The S&B Cold Side Intercooler Pipe replaces the failure-prone OEM intercooler pipe that is known to burst and leave you stranded. Larger than stock 3.50” diameter polished aluminum CAC pipe. Stronger 5-Ply Aramid Reinforced Silicone Hose. Less Restriction. Improved airflow. Better performance. 2-piece design for easy installation. Replaces BC3Z-6F073-D *Important: No CARB EO for F-450/F-550.