JEGS Champion Series 331 Intake Manifolds utilize the latest casting and machining techniques to ensure the highest quality and performance. The process that we employ yields a more consistent and lighter casting. This results in smoother intake runners that allows for optimal fuel atomization and better distribution of fuel and air to the cylinders. What does this mean for you - MORE POWER! JEGS Easy Kits are designed by JEGS professionals so you get all the parts you need.