Long Tube Headers for 79-93 Mustang 5.0L SBF 1-3/4in Primary D6671-B

Overview:79-93 Mustang 5.0 Long Tube Black CtdLong tube headers provide the greatest increases in horsepower and torque across the entire RPM spectrum. The choice of racers worldwide, Doug's long tube headers are designed for the car owner who wants maximum power and the highest quality header on the market.Features: 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 Specs: Brand: Doug's Headers Collector Attachment: 3-Bolt Flange Collector Diameter: 3.0 IN Collector Port Diameter: 3.0 IN Color: Black Cylinder Head Port Shape: SAP Design: Full-length EGT Port: No Finish: Hi-Temp Black Coating Flange Thickness: 0.375 IN Gasket Or Seal Included: Yes Gaskets Included: Yes Grade Type: Performance Header Material: Steel Header Style: Full-length Material: Steel Mounting Hardware Included: Yes Oxygen Sensor Port: Yes Port Shape: SAP Primary Tube Outside Diameter: 1.75 IN Primary Tubing Diameter: 1.75 IN Prop 65 (C, R or CR): CR Prop 65 Yes/No: Yes Sheen Level: Matte Title: Doug's Long Tube Header 79-93 Mustang 5.0L SBF 1 3/4" Primary 3" Collector Black Hi Temp Coated D6671-B Tube Wall Thickness: 16 GU Part Number: D6671-B Applications: 1979-1993 Ford Mustang 302 CID 1980-1982 Ford Mustang 255 CID 1979-1986 Mercury Capri 302 CID 1980-1982 Mercury Capri 255 CID Emissions: This Product is LEGAL for Closed Course Competition use or Pre-Emissions Controlled Vehicles ONLY. It is Not Legal for use on any Emissions Controlled Vehicle for Street or Off Highway use. Instructions:Click here for installation instructions!Fitment Notes: O2 bungs are welded on both collectors. 79-'85 models require use of '86 or later double hump crossmember. Fits with '82 and later Lakewood scattershield. Fits Stock, GT40, Dart, Edelbrock and TFS Twisted Wedge Street heads.