PDI Big Boss Ceramic Coated Exhaust Manifold for 2010-2022 Cummins ISX & X15

Performance Diesel Inc. (PDI) exhaust manifolds maximize exhaust air flow to reduce turbo lag time and cool exhaust temperatures. In the design of the manifold, each port is analyzed and tested to provide a balanced flow to the turbocharger. Big Boss Exhaust Manifolds produce approximately a 20% airflow increase over a stock manifold, cooling exhaust temperatures by 75-100 degrees. PDI manifolds are a big part in maintaining the best exhaust pressure to boost pressure ratios which will provide the potential for increased fuel economy.

Key Features & Benefits

• High Temp Polished Ceramic Coated Manifold – Also Available in Non-Coated & Black Ceramic Coated
• Cooler Exhaust Gas Temperatures
• Increased Airflow over Stock Manifold
• Many Drivers Report Fuel Mileage Improvements
• Includes Turbo Studs, Nuts and End seals
• Industry Best 3 Year Unlimited Mileage Manufacturer Warranty
• Replaces OE Center Manifold Part # 3687063
• Optional Installation Kit & Manifold Spacers Available – See Below for More Info

Optional Installation Kit Includes

• Turbo Flange Gaskets
• Exhaust Gaskets for Manifold to Head
• New EGR Bellow
• Bellow Clamps
• EGR Steel Gaskets
• Turbo Connection Banjo Washers
• Turbo Connection O-ring Seals

Optional Stainless Steel Manifold Spacers prevent rust and corrosion. This kit includes all new hardened bolts to ensure proper installation of your manifold.

PDI uses only the best material for the Big Boss Exhaust Manifolds. They are built from a superior grade of High Silicon with Molybdenum Ductile Iron (HSMD) that eliminates weak points such as warping, cracking, and center divider failure from heat erosion. This material, combined with a redesign of the mounting surfaces, eliminates common failures due to a fatigued manifold.