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    • FlowTech LS Turbo Headers (Up and forward) 1-7/8" 409SS GM 4.8/5.3/6.0L V8 Natural Finish 11537FLT
    • FlowTech LS Turbo Headers (Up and forward) 1-7/8" 409SS GM 4.8/5.3/6.0L V8 Natural Finish 11537FLT
    • FlowTech LS Turbo Headers (Up and forward) 1-7/8" 409SS GM 4.8/5.3/6.0L V8 Natural Finish 11537FLT
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    Sale!

    FlowTech LS Turbo Headers (Up and forward) 1-7/8" 409SS GM 4.8/5.3/6.0L V8 Natural Finish 11537FLT

    Vendor: FlowTech
    Part Number: 11537FLT
    Save $71
    Sale Price $279.95 Regular Price $350.95

    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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    Flowtech Headers are the perfect combination of quality and value. These "4 to 1" LS Turbo headers available in 1-3/4" and 1-7/8" tube diameters are an ideal design creating a compact package allowing a variety of configurations (Up and Forward, Down and Forward, or Down and Back) to be used as a universal fit Turbo header.


    FlowTech LS Turbo Headers (Up and forward) 1-7/8" 409SS GM 4.8/5.3/6.0L V8 Natural Finish 11537FLT


    Specifications:

    Bolt size M8 x 1.25 x 25mm
    Brand Flowtech Exhaust
    CARB (California) Compliant No
    Category Exhaust
    Collector Attachment V-band
    Collector Diameter 3.00
    2877 3.00
    17 Silver
    153 Shorty
    10091 No
    Emission Code 4
    Engine GM Gen III/IV (LS)
    200 Natural
    Flange Thickness 7/16"
    710 0.4375
    353 No
    3390 Performance
    Header Finish Natural
    Header Style Turbo
    10 409 Stainless Steel
    30 No
    2878 No
    part type Exhaust Header
    1905 Round
    Primary Tube Dia. 1-7/8 inch
    10092 1.875
    Primary Tubing Diameter 1-7/8
    Product Type Headers
    1336 Semi-Gloss
    Sub Category Exhaust Manifolds
    Tube Material 409 Stainless Steel
    Tube Wall Thickness 16
    Warning California Proposition 65
    Bolt size M8 x 1.25 x 25mm
    Brand Flowtech Exhaust
    CARB (California) Compliant No
    Category Exhaust
    Collector Attachment V-band
    Collector Diameter 3.00
    2877 3.00
    17 Silver
    153 Shorty
    10091 No
    Emission Code 4
    Engine GM Gen III/IV (LS)
    200 Natural
    Flange Thickness 7/16"
    710 0.4375
    353 No
    3390 Performance
    Header Finish Natural
    Header Style Turbo
    10 409 Stainless Steel
    30 No
    2878 No
    part type Exhaust Header
    1905 Round
    Primary Tube Dia. 1-7/8 inch
    10092 1.875
    Primary Tubing Diameter 1-7/8
    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 LS TURBO
    Description_SHO HDR 409LS TURB 1-7/8
    Description_INV FLOWTECH UP AND FORWARD TURBO HEADERS 40
    Description_DES Flowtech LS Turbo Headers-Natural Finish
    Description_EXT LS Turbo Headers (Up and forward) 1-7/8" 409SS GM 4.8/5.3/6.0L V8 Natural Finish
    Description_MKT Flowtech Headers are the perfect combination of quality and value. These "4 to 1" LS Turbo headers available in 1-3/4" and 1-7/8" tube diameters are an ideal design creating a compact package allowing a variety of configurations (Up and Forward, Down and Forward, or Down and Back) to be used as a universal fit Turbo 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 304SS (Polished Finish Only) and 409SS (Natural, Black Painted, and Ceramic Coated finishes) tubing for increased strength and durability
    Description_FAB 1-3/4” and 1-7/8” 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 7/16” thick header flange for a leak-free seal and maximum strength
    Description_FAB Premium aluminum header gaskets included
    Description_FAB 3” V-Band Flanges and Clamps are included
    Description_FAB Available in a total of four finishes (Natural, Black Painted, Ceramic Coated, and Polished)
    Description_ABR HDR LS TURBO
    Description_SHO HDR 409LS TURB 1-7/8
    Description_INV FLOWTECH UP AND FORWARD TURBO HEADERS 40
    Description_DES Flowtech LS Turbo Headers-Natural Finish
    Description_EXT LS Turbo Headers (Up and forward) 1-7/8" 409SS GM 4.8/5.3/6.0L V8 Natural Finish
    Description_MKT Flowtech Headers are the perfect combination of quality and value. These "4 to 1" LS Turbo headers available in 1-3/4" and 1-7/8" tube diameters are an ideal design creating a compact package allowing a variety of configurations (Up and Forward, Down and Forward, or Down and Back) to be used as a universal fit Turbo 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 304SS (Polished Finish Only) and 409SS (Natural, Black Painted, and Ceramic Coated finishes) tubing for increased strength and durability
    Description_FAB 1-3/4” and 1-7/8” 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 7/16” thick header flange for a leak-free seal and maximum strength
    Description_FAB Premium aluminum header gaskets included
    Description_FAB 3” V-Band Flanges and Clamps are included
    Description_FAB Available in a total of four finishes (Natural, Black Painted, Ceramic Coated, and Polished)


    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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