Product Summary

Tri-Y Header Tube Type, Standard Flange Style, Steel

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    Key Specs

    MFG. Part #D755Y
    Header Tube TypeTri-Y
    Flange StyleStandard
    Primary Tube Diameter1-3/4"
    Material TypeSteel
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    Need To Know

    Quick and Easy Returns

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    Doug's Headers D755Y Details

    Doug's 2/4 WD TRUCK HEADERS Tri-Y Metallic Ceramic Coated Header development and design is complex and requires a substantial amount of time and resources to do the job right! Many manufacturers are unwilling to make the commitment and instead offer compromised headers at lower prices. Doug's will not compromise performance, quality or fit to compete with inferior designs at cheap prices. Every Doug's header is tuned with the proper tube size and length to efficiently remove all the exhaust from each cylinder, reducing pumping losses resulting in a dramatic increases in horsepower and torque. Doug's headers are carefully developed on the vehicles they are intended to fit and are re-checked numerous times during the design and manufacturing process.

    • 3/8" Thick machined flanges...no warping
    • CNC mandrel bent tubes... accurate fit & better flow
    • Tri-Y headers yield maximum power from off idle to 4500 RPM making them well suited for applications demanding maximum mid-range torque with maximum fuel economy
    • Heavy 16 gauge tubing...longer life
    • Tubes are pre-polished to remove scratches and the header isfinished with a Metallic Ceramic Thermal Barrier Coating polished to a high luster appearance offering corrosion and heat resistance up to 1400 degrees
    • Doug's Headers D755Y 1 3/4" Tri-Y Header Oldsmobile Motor Home 455 73-78 Metallic Ceramic Metallic Ceramic Coating
    • Doug's Headers D755Y 1 3/4" Tri-Y Header Oldsmobile Motor Home 455 73-78 Metallic Ceramic Metallic Ceramic Coating

    Charts

    CARB Warning

    For use on pre-1966 vehicles only

    Emissions warning: this part only legal for sale or use in California if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. ++any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering there are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

    Doug's Headers D755Y Specifications

    KEY SPECS
    MFG. Part #D755Y
    BrandDoug's Headers
    Header Tube TypeTri-Y
    Flange StyleStandard
    Primary Tube Diameter1-3/4"
    Material TypeSteel
    ColorSilver
    Weld-UpNo
    Collector Diameter3 Inch
    FinishCeramic Coated
    Hardware IncludedYes
    Gasket(s) IncludedYes
    GENERAL
    Sold in QuantityPair
    GTIN Code694342510909

    Questions & Answers

    Fitment

    • 455 Oldsmobile Big-Block V8

    • 455 Oldsmobile Big-Block V8

    • 455 Oldsmobile Big-Block V8

    • 455 Oldsmobile Big-Block V8

    • 455 Oldsmobile Big-Block V8

    • 455 Oldsmobile Big-Block V8

    • 455 Oldsmobile Big-Block V8

    • 455 Oldsmobile Big-Block V8

    • 455 Oldsmobile Big-Block V8

    • 455 Oldsmobile Big-Block V8

    • 455 Oldsmobile Big-Block V8

    • 455 Oldsmobile Big-Block V8

    • 455 Oldsmobile Big-Block V8

    • 455 Oldsmobile Big-Block V8

    Customer Impersonation Script