Replacement manifolds with larger T4 and T6 flanges for changing out the stock turbo. The turbo stays in same stock location. Fully divided pulse manifold made from high-silicon ductile iron is designed to withstand extreme temperatures and vibration. Great for performance trucks wanting to increase airflow. Designed using modern technology utilizes pulse flow for quicker turbo spool and increased power. Precision slip joints allow the manifold to expand and contract, which reduces cyclic thermal fatigue and greatly increase manifold longevity. FEATURES Larger porting design than others maximizes T4 turbocharger's potential power Fully divided pulse manifold design 6.7L performance replacement manifold for use T4 mount turbochargers (S300,S400,etc.) Fully divided pulse manifold design, allows for quicker turbo response Cast of high silicon ductile iron to withstand extreme temperature cycling caused during DPF regeneration and in high performance applications Thick walled casting and integral slip joint prevents cracking and exhaust leaks Experience quick spool times and low drive pressures with an overall increase in performance Fully EGR compatible Gaskets set with EGR port, exhaust port and turbo mount gaskets available separately - P/N 1045992-T4 WARRANTY Parts 36-Months 75,000 Miles NOTE Not for sale on licensed California vehicles VIDEOS The BD Diesel Difference What Does It Take To Create Performance Manifolds?