Doug's Headers D3373 1 5/8" 4-Tube Manifold Replacement Header Chevrolet Truck 5.3L 02-13 Metallic Ceramic Coating
Features & Benefits 3/8" Thick machined flanges to prevent warping Precision formed long transition collectors and long tube design reduces backpressure and increases higher RPM horsepower Heavy duty 16-gauge tubing for long life Tubes are pre-polished to removed scratches before applying metallic ceramic or hi-temp black coating For the enthusiast who demands the best, Doug's Headers are not just components; they're a statement of excellence, a commitment to leading-edge performance, and a nod to the glory days of muscle cars and drag racing. Join the ranks of champions. Experience the unmatched quality and performance of Doug's Headers today.Specifications Finish Metallic Ceramic Coated Material Steel Design Shorty Primary Tubing Diameter 1.625 IN Collector Port Diameter 2.5 IN Port Shape Round Tube Wall Thickness 16 Gauge Flange Thickness 0.375 IN Collector Attachment 3-Bolt Flange EGT Port No Oxygen Sensor Port No Gasket Or Seal Included Yes Mounting Ha