Menu

Shop

Garage

Cart

Account

Product Summary

Long Tube Header Tube Type, Square Exhaust Port Shape

    See more details

    Key Specs

    MFG. Part #D4477
    Header Tube TypeLong Tube
    Exhaust Port ShapeSquare
    Flange StyleStandard
    Primary Tube Diameter1-5/8"
    See more specs

    Need To Know

    Quick and Easy Returns

    Return Policy

    Dougs Headers D4477 Details

    • 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 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 D4477 1 5/8" 4-Tube Full Length Header Mopar R/T 5.7 Hemi 68-74 Metallic Ceramic Coating
    • Doug's Headers D4477 1 5/8" 4-Tube Full Length Header Mopar R/T 5.7 Hemi 68-74 Metallic Ceramic Coating

    Charts

    CARB Warning

    For race/ off road use only

    Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. 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.

    Dougs Headers D4477 Specifications

    KEY SPECS
    MFG. Part #D4477
    BrandDougs Headers
    Header Tube TypeLong Tube
    Exhaust Port ShapeSquare
    Flange StyleStandard
    Primary Tube Diameter1-5/8"
    Material TypeSteel
    ColorSilver
    Weld-UpNo
    Collector Diameter3 Inch
    FinishCeramic Coated
    Hardware IncludedYes
    Gasket(s) IncludedYes
    Collector Reducers IncludedYes
    Collector Reducer Exit Diameter2.5"
    Collector Attachment Type3-bolt flange
    GENERAL
    Sold in QuantityPair
    GTIN Code694342519506

    Fitment

    • 5.7 Chrysler Hemi V8

    • 5.7 Chrysler Hemi V8

    • 5.7 Chrysler Hemi V8

    • 5.7 Chrysler Hemi V8

    • 5.7 Chrysler Hemi V8

    • 5.7 Chrysler Hemi V8

    • 5.7 Chrysler Hemi V8

    • 5.7 Chrysler Hemi V8

    • 5.7 Chrysler Hemi V8

    • 5.7 Chrysler Hemi V8

    • 5.7 Chrysler Hemi V8

    • 5.7 Chrysler Hemi V8

    • 5.7 Chrysler Hemi V8

    • 5.7 Chrysler Hemi V8

    • 5.7 Chrysler Hemi V8

    • 5.7 Chrysler Hemi V8

    • 5.7 Chrysler Hemi V8

    • 5.7 Chrysler Hemi V8

    • 5.7 Chrysler Hemi V8

    • 5.7 Chrysler Hemi V8

    • 5.7 Chrysler Hemi V8

    • 5.7 Chrysler Hemi V8

    • 5.7 Chrysler Hemi V8

    Customer Impersonation Script