Designed for your specific year, make and model diesel rig. Delivers the highest volume and coolest airflow possible to your engine. Up to 40% more airflow over stock intake manifolds (depends on vehicle). Increases horsepower, torque, fuel economy and turbo spool-up while reducing EGTs. Crafted of high-temperature composite materials-900 times less conductive than aluminum. CFM Intake Manifold, CFM+ Manifold, CFM Air Intake Manifolds. For the top selection of CFM+ Air Intake Systems shop online today. The CFM Intake Manifold, CFM+ Manifold, CFM Air Intake Manifolds will improve and personalize your vehicle. Intake Manifolds by CFM+ - selected by many auto enthusiasts in the top automotive discussion forums. CFM+ Intake Manifold for your vehicle will deliver the results you are looking for!