Flowtech Headers are the perfect combination of quality and value. These block hugger headers fit the popular small block Chevy with fast burn D-port heads. This header is constructed from polished stainless steel. Ideal For Street Rods Mandrel Bent Tubes Provide Smooth Flow/Increased Exhaust Velocity 16 Gauge Tubing Increases Strength Increased Throttle Response Increased Performance TIG Welded Collector Leak Free Seal Premium Hardware Attributes: GTIN: 00090127690796 Brand Name: FlowTech Application: Automotive Coated Finish: Stainless Steel Collector Tube Size: 2.500 in. Engine Make/Size: Chevy Small Block (262-400) Finish: Polished Material: Steel Port Shape: D-Port Tube Diameter: 1.625 in. Tube Direction: Down Swept WARNING CA Proposition 65: Yes WARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov Extended Information: Country of Origin: China Emissions : Electronically Announced Life Cycle Status: Available To Order Packing Information: Quantity of Each: Package UOM: Dimension: 19.0000 x 13.8000 x 10.8000 inches Weight: 14.4000 lb PDF: PDF: 11701-5-6flt