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Doug's Headers D312-R

Uncoated/Raw Headers Chevy LS1/LS6 1-3/4" Tube Diameter

Doug's Headers D312-R


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Estimated to ship directly from the manufacturer on 05/03/18
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Doug's Headers D312-R Uncoated/Raw Headers Chevy LS1/LS6 1-3/4" Tube Diameter $329.99
Uncoated/Raw Headers
  • Chevy LS1/LS6
  • 1-3/4'' Tube Diameter
  • 2-1/2'' Collector
  • SAP Port Shape

  • Doug's Headers D312-R Details

    Chevrolet Engines


    • Fits automatic and manual transmissions.
    • Universal block hugger design.
    • Weld on oxygen sensor bungs are provided with the collector reducer kit.
    • Requires use of Street & Performance (or equivalent) billet aluminum adaptors, along with D & P Chassis (or equivalent) Chevy frame stands.
    • LS1/LS6 engines require the use of a LS1 oil pan for proper header fit.

    Emission Code:

    • The product accompanying this document is legal only for off-highway use (except in California or states that have adopted California emission standards), racing use or for use on pre-emission-controlled motor vehicles/motor vehicle engines (pre-1974 domestic vehicles certified to California standards, pre-1974 domestic vehicles certified to federal standards and all pre-1974 foreign vehicles), per the manufacturer's application guide.


    Manufacturer's Part Number:

    Popular Hot Rod Headers

    Every Doug's Header is tuned with the proper tube size and length to efficiently remove exhaust gasses from each cylinder. These headers feature 3/8'' flanges and 16-gauge tubing on passenger car applications. They include all necessary mounting hardware, collector reducers or connection pipes, premium gaskets and detailed instructions. Headers are available in either a Metallic Ceramic Thermal Barrier Coating or a uncoated raw finish. The Metallic Ceramic Thermal Barrier Coating will withstand up to 1400 degree temperatures! This coating is polished which increases corrosion resistance over 60%!

  • 3/8'' Flange Thickness
  • 16-Gauge Tubing
  • Available in Raw & Ceramic Coated
  • Includes All Hardware for Installation

  • Items You Need
    Some parts are not legal for use in California or other states with similar laws / regulations