Flowtech headers are the perfect combination of performance and value. Flowtech shorty headers are precision engineered using mandrel bent tubing, formed collectors and 5/16 in. flanges with sealing rings for a leak-free seal. All mounting hardware and gaskets are included for a simple installation. This header is coated in a high heat resistant black paint for a stealthy appearance. Fuel Economy From The Engine Leak Test For Max Performance Mandrel-Formed Power Plenum Leak-proof O-Ringed Port Seals Include All Mounting Hardware Attributes: GTIN: 00090127588758 Brand Name: FlowTech Application: Automotive Coated Finish: Painted Collector Diameter: 2.500 in. Collector Tube Size: 2.500 in. Engine Make/Size: Chevy Small Block (262-400) Finish: Black Paint Material: Mild Steel Port Shape: Round Primary Tube Diameter: 1.500 in. Tube Diameter: 1.500 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: 29.1000 x 17.6000 x 14.4000 inches Weight: 20.2500 lb PDF: PDF: 11116FLT