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    Sale!

    FlowTech Flowtech Upright Headers 11545FLT

    Vendor: FlowTech
    Part Number: 11545FLT
    Save $258
    Sale Price $209.95 Regular Price $467.95

    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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    They feature a merged collector coupled with a collector spear that is welded inside the collector. These components help to improve the flow and performance of the header.


    FlowTech Flowtech Upright Headers 11545FLT


    Specifications:

    Application Small Block Chevy
    Bolt size 3/8-16 x 3/4
    Brand Flowtech Exhaust
    California Proposition 65 Required Yes
    CARB (California) Compliant No
    Category Exhaust
    1895 Weld-On
    Collector Diameter 3.00
    Collector Length 12.00
    2877 3.00
    17 Silver
    Design Upright
    10091 No
    Emission Code 4
    Engine Chevrolet Small Block Gen I
    200 Natural
    353 No
    3390 Performance
    Header Finish Natural
    Header Style Upright
    Installed Height 37.00
    10 409 Stainless Steel
    30 No
    2878 No
    part type Exhaust Header
    1905 Square
    Primary Tube Dia. 1-5/8 inch
    Primary Tubing Diameter 1-5/8
    10092 1.625
    Product Type Headers
    1336 Semi-Gloss
    Sub Category Exhaust Manifolds
    Tube Material 409 Stainless Steel
    Tube Wall Thickness 16
    Warning California Proposition 65
    Application Small Block Chevy
    Bolt size 3/8-16 x 3/4
    Brand Flowtech Exhaust
    California Proposition 65 Required Yes
    CARB (California) Compliant No
    Category Exhaust
    1895 Weld-On
    Collector Diameter 3.00
    Collector Length 12.00
    2877 3.00
    17 Silver
    Design Upright
    10091 No
    Emission Code 4
    Engine Chevrolet Small Block Gen I
    200 Natural
    353 No
    3390 Performance
    Header Finish Natural
    Header Style Upright
    Installed Height 37.00
    10 409 Stainless Steel
    30 No
    2878 No
    part type Exhaust Header
    1905 Square
    Primary Tube Dia. 1-5/8 inch
    Primary Tubing Diameter 1-5/8
    10092 1.625
    Product Type Headers
    1336 Semi-Gloss
    Sub Category Exhaust Manifolds
    Tube Material 409 Stainless Steel
    Tube Wall Thickness 16
    Warning California Proposition 65
    Description_ABR HDR SBC UPRI
    Description_SHO HDR SBC UPRIGT 1-5/8
    Description_INV SBC UPRIGHT HEADERS 1-5/8 IN W/ 3 IN COL
    Description_ASC Gaskets and hardware sold separately.
    Description_DES Flowtech Upright Headers
    Description_EXT Fits Small Block Chevy, 1-5/8" Primary Tubes, 409 Stainless Steel Upright Headers- Natural Finish
    Description_MKT Flowtech Headers are the perfect combination of quality and value. These Small Block Chevy Upright headers available in 1-5/8" and 1-3/4" tube diameters are ideal for even big cubic inch Small Block Chevy engines.
    Description_MKT They feature a merged collector coupled with a collector spear that is welded inside the collector. These components help to improve the flow and performance of the header.
    Description_FAB CNC Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increases the cylinder scavenging effect and improves engine breathing
    Description_FAB Heavy duty 16-gauge 409SS tubing for increased strength and durability
    Description_FAB 1-5/8” and 1-3/4” tubing diameters available for increased exhaust flow increasing performance and improved throttle response
    Description_FAB 3” collector for maximum strength and exhaust flow
    Description_FAB Extra thick header flange for a leak-free seal and maximum strength
    Description_FAB Welded-in collector merge spears to control exhaust gas re-entry into primary tubes
    Description_ABR HDR SBC UPRI
    Description_SHO HDR SBC UPRIGT 1-5/8
    Description_INV SBC UPRIGHT HEADERS 1-5/8 IN W/ 3 IN COL
    Description_ASC Gaskets and hardware sold separately.
    Description_DES Flowtech Upright Headers
    Description_EXT Fits Small Block Chevy, 1-5/8" Primary Tubes, 409 Stainless Steel Upright Headers- Natural Finish
    Description_MKT Flowtech Headers are the perfect combination of quality and value. These Small Block Chevy Upright headers available in 1-5/8" and 1-3/4" tube diameters are ideal for even big cubic inch Small Block Chevy engines.
    Description_MKT They feature a merged collector coupled with a collector spear that is welded inside the collector. These components help to improve the flow and performance of the header.
    Description_FAB CNC Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increases the cylinder scavenging effect and improves engine breathing
    Description_FAB Heavy duty 16-gauge 409SS tubing for increased strength and durability
    Description_FAB 1-5/8” and 1-3/4” tubing diameters available for increased exhaust flow increasing performance and improved throttle response
    Description_FAB 3” collector for maximum strength and exhaust flow
    Description_FAB Extra thick header flange for a leak-free seal and maximum strength
    Description_FAB Welded-in collector merge spears to control exhaust gas re-entry into primary tubes


    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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