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Doug's Headers 1 3/4" 4-Tube Full Length D-Port Headers Pontiac GTO 326-455 68-72 Metallic Ceramic Coating

Doug's Headers
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  • DHE-D590
    • DHE-D590
    Pontiac 1968-1972 389-455 GTO, Lemans, Tempest D-Port Headers 1 3/4" Pipe, 3" Collector (Ceramic Coated) *May have to reposition brake proportioning valve on dr. side frame rail*

    Description

    3/8" Thick machined flanges... no warping CNC mandrel bent tubes... accurate fit & better flow Precision formed long transition collectors and long tube design... reduces backpressure and increases higher RPM horsepower Heavy 16 gauge tubing... longer life Tubes are pre-polished to remove scratches and the header is finished with a Metallic Ceramic Thermal Barrier Coating polished to a high luster appearance offering corrosion and heat resistance up to 1400 degrees

    Doug's COATED(-C) Headers come with a ceramic heat barrier and rust proof coating (polished aluminum color)