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Product Summary

326, 350, 389, 400, 421, 428, 455, Temporary Paint

    Key Specs

    Header Tube TypeFull-Length
    FinishTemporary Paint
    Flange StyleStandard
    Primary Tube Diameter1-3/4"
    Material TypeSteel

    Need To Know

    This Product Will Ship Free

    Shipping Policies & FAQs

    Quick and Easy Returns

    Return Policy

    Hooker Headers 4109HKR Details

    With Hooker Super Competition the objective has always been to make the maximum horsepower and to put it at the optimum point in the power curve. It takes a lot of time and money to do the job right. We will sometimes spend up to 2 to 3 times more just to make the Super Competition header work only 5 to 10% better. That commitment to excellence has made Hooker Headers the winningest header manufacturer in automotive drag racing history.

    • Designed for optimal performance
    • Industry™s best welds for durability
    • 5/16 machined flanges for a perfect seal
    • Long transition collector for decreased back pressure
    • Light weight & sturdy 18 gauge tubing
    • Mandrel-bent tubing for smooth exhaust flow
    • Tuned-length primary tubes for maximum exhaust scavenging and velocity
    • All necessary hardware included for a complete installation

    Application

    1970 Pontiac Firebird
    1971 Pontiac Firebird
    1972 Pontiac Firebird
    1973 Pontiac Firebird
    1974 Pontiac Firebird
    1975 Pontiac Firebird
    1976 Pontiac Firebird
    1977 Pontiac Firebird
    1978 Pontiac Firebird
    1979 Pontiac Firebird
    1980 Pontiac Firebird
    1981 Pontiac Firebird

    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.

    Hooker Headers 4109HKR Specifications

    KEY SPECS
    MFG. Part #4109HKR
    BrandHooker Headers
    Header Tube TypeFull-Length
    FinishTemporary Paint
    Flange StyleStandard
    Primary Tube Diameter1-3/4"
    Material TypeSteel
    ColorBlack
    Weld-UpNo
    Exhaust Port ShapeD-port
    Collector Diameter3 Inch
    Hardware IncludedYes
    Gasket(s) IncludedYes
    Collector Reducers IncludedNo
    GENERAL
    Speedway Motors Catalog Part #425-4109HKR
    Collector Length10"
    Flange Thickness0.3125"
    Sold in QuantityPair
    NotesThe paint applied to these headers is a temporary coating only and is designed to burn off during use. High temperature paint or other high temperature coatings are recommended.
    Emission Code3
    GTIN Code700414009483
    Crossover Pipe IncludedNo
    Primary Tube Gauge18-gauge