S&B 76-1003B Intake Manifold UpgradeS&B Filters Intake Elbow for Better Performance Upgrade your factory intake manifold with the S&B Filters Intake Manifold. It is CNC Machined cut to perfection and engineer tested to the highest standards. Built to withstand high pressures, S&B Filters does not recommend using their intake elbow if you are exceeding higher that 75 PSI. S&B Filters states that they are in the process of obtaining an Executive Order (EO) Sticker from the California Air Resource Board (CARB). Please call us to see if it has been instated.