DIESELR 3.5" Max Intake Manifold (2007.5-2018 Cummins 6.7L)Built specifically for 2007. 52018 Cummins 6. 7L trucks, the DIESELR 3. 5" Cummins Intake Manifold increases airflow and improves engine efficiency. This mandrel bent manifold helps reduce restriction and stabilize throttle across your power range. Built from Stainless Steel, Designed for Pressure This 3. 5 inch intake manifold is crafted from high grade stainless steel, offering reliable strength under heat and vibration. Whether you're hauling or