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    • Hedman Hedders Standard Uncoated Headers; 1-3/4 in. Tube Dia.; 3 in. Coll.; FULL LENGTH Design 28150
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    Hedman Hedders Standard Uncoated Headers; 1-3/4 in. Tube Dia.; 3 in. Coll.; FULL LENGTH Design 28150

    Vendor: Hedman Hedders
    Part Number: 28150
    Regular Price $872.61

    Available to order. In-stock orders typically ship in 1 to 2 business days.

    Not sure it fits your vehicle?
    Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
    Fast Fulfillment: In-stock orders typically ship within 1 to 2 business days.
    Free Shipping on Orders Over $99 | Excludes freight shipments
    International Shipping Available: email sales@berryperformancesales.com for a quote.
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    Standard Uncoated Headers; 1-3/4 in. Tube Dia.; 3 in. Coll.; FULL LENGTH Design


    Hedman Hedders Standard Uncoated Headers; 1-3/4 in. Tube Dia.; 3 in. Coll.; FULL LENGTH Design 28150


    Specifications:

    Description_DEF [B@44e4da60
    Description_DES [B@5a4f401c
    Description_EXT [B@44e03254
    Description_FAB [B@426c8d
    Description_FAB [B@6217813f
    Description_FAB [B@42f862c1
    Description_FAB [B@74f9a58
    Description_FAB [B@147ab838
    Description_FAB [B@4abaddf1
    Description_INV [B@4b55400d
    Description_SHO [B@30b39e65
    Title HEDMAN HEDDERS STANDARD UNCOATED HEADERS; 1-3/4 IN. TUBE DIA.; 3 IN. COLL.; FULL LENGTH DESIGN
    Tube Diameter 1-3/4 in.
    Y-Pipe Included No
    Weld-Up No
    Tuned No
    Bolts/Studs Included Yes
    Catalytic Converter(s) Included No
    Crossover Pipe Included No
    Gasket Or Seal Included Yes
    Header Fasteners Included Yes
    Installation Hardware Included Yes
    Motor Mounts Included No
    Mounting Hardware Included Yes
    Reducers Included Yes
    Quantity Sold as a pair.
    with A.I.R. System No
    Primary Tube Gauge 16g
    Primary Tube Diameter (in) 1.75 in.
    Package Contents Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware
    Header Material Mild Steel
    Header Finish Uncoated
    Cylinder Head Port Shape Oval
    Cylinder Head Stock Profile Heads
    Header Construction MILD STEEL- Standard-Duty
    Replacement Gasket 27600
    Replacement Head Flange Gasket 27600
    California Proposition 65 WARNING: Cancer. For more info visit www.P65Warnings.ca.gov
    with EGR No
    Variations 28156
    Tube Style Long Tubes
    Air Conditioning Yes
    Automatic Transmission - Column No
    Automatic Transmission - Floor Yes
    Manual Transmission - Column Yes
    Manual Transmission - Floor Yes
    Tube Size 1-3/4 in.
    Material Mild Steel
    Tube Design Standard
    Tube Length Long Tubes
    Tube Material Thickness 16g
    Flange Thickness 0.3125 in.
    Exhaust System Dia 2-1/2 in.
    Reducer Outlet Size 2-1/2 in.
    Collector Attachment 3 in.
    Collector Diameter 3 in.
    Collector Size 3 in.
    Notes 70-81 Trans-Am 326-455
    Collector Style BALL and SOCKET Style (Gasketless)
    Emissions Notes EO# D167-27 (click here for covered vehicles in document on ARB.CA.GOV website)
    Contents headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware
    Header Style Long Tube
    Flange Style Standard
    Finish Uncoated
    Finish Type UNCOATED Mild Steel! Shipped with Temporary Paint.
    E.O. # Yes
    Power Steering Yes


    This Part Fits:

    Year Make Model Submodel Notes
    1970 Pontiac Firebird BASE
    1971 Pontiac Firebird BASE
    1972 Pontiac Firebird BASE
    1973 Pontiac Firebird BASE
    1974 Pontiac Firebird BASE
    1975 Pontiac Firebird BASE
    1976 Pontiac Firebird BASE
    1977 Pontiac Firebird BASE
    1978 Pontiac Firebird BASE
    1979 Pontiac Firebird BASE
    Shipping Policy
    • Free shipping on orders over $99 (excludes freight shipments).
    • In-stock orders typically ship within 1 to 2 business days. Weekend and holiday orders are processed the next business day.
    • Orders ship from Defiance, Ohio and a nationwide network of warehouses and manufacturers.
    • Items showing an ETA are not in stock yet. ETAs come from the manufacturer and can change.
    • No P.O. Boxes. International orders need a shipping quote, so email us first.

    Read the full Shipping Policy

    Return Policy
    • 30-day return window from the ship date. Returns must be approved first; email sales@berryperformancesales.com with your order number.
    • Items must be unused, complete and in the original packaging.
    • A 20% restocking fee applies, and return shipping is paid by the buyer.
    • Not returnable: installed or modified parts, opened or used programmers and tuners, custom orders, Open Box, and Clearance or Final Sale items.
    • Damaged, defective or incorrect items must be reported within 48 hours of delivery with photos.

    Read the full Return Policy

    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

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