Full Tilt Detroit 9348 Exhaust Manifold - High Mount

Made In The U.S.A. Increases Fuel Mileage By .2 To .3 Miles Per Gallon Increases Horsepower By 28 To 32 Ceramic Coating Reduces Heat And Improves Air Velocity Lower Manifold Temps 300 Degrees Fahrenheit Lower EGT's 80 To 100 Degrees Fahrenheit Reduces Turbo Lag No Cracking, Leaking Or Warping Improves Gasket Life Thicker Exhaust Flanges And Center Dividers Provide Greater Strength And Durability Joints Designed With Tighter Tolerances With 50% More Surface Contact And Are Press Fit To Ensure No Leaks Eliminated Sharp Turns And Twists To Create Smooth Airflow To The Turbo Minimum 20 Cubic Feet Of Air Flow Per Minute More Per Port   Applications Pre-Emission Engine Replaces OEM #23519348 Replaces OEM #23512986 Replaces OEM #23511978 Primarily used in Peterbilt & Kenworth Trucks 12.7L & 14.0L non-EGR engines