JBA Exhaust Headers for Chevy GMC Blazer S10 Blazer S10 4.3L V6 - 1840S-4
SKU: 83424019638

JBA Exhaust Headers for Chevy GMC Blazer S10 Blazer S10 4.3L V6 - 1840S-4

Sale price$338.74 Regular price$376.38
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

JBA Exhaust Headers for Chevy GMC Blazer S10 Blazer S10 4.3L V6 - 1840S-4Overview: 02 03 GM S Truck Cat4Ward 4. 3L Raw 409 JBA shorty headers are one of the foremost performance upgrades you can bestow upon your beloved car, truck, or SUV. JBA Headers are significantly less restrictive than stock manifolds and dramatically increase the power and efficiency of your engine. Each header is constructed from durable stainless steel to endure the abuse of racing, towing, and daily driving built to withstand it all. JBAs

Overview:

02-03 GM S Truck Cat4Ward® 4.3L Raw 409

JBA shorty headers are one of the foremost performance upgrades you can bestow upon your beloved car, truck, or SUV. JBA Headers are significantly less restrictive than stock manifolds and dramatically increase the power and efficiency of your engine. Each header is constructed from durable stainless steel to endure the abuse of racing, towing, and daily driving – built to withstand it all. JBA’s proprietary Firecone collector design uses race proven technology for producing maximum power and torque gains where you drive most. Each system includes factory style emission connections and high-quality hardware for a professional no-leak installation.

Features:

  • Mandrel bent stainless steel tube
  • Proprietary JBA Firecone collector
  • Factory style emission connections
  • Extra thick collector domes
  • 3/8" thick machined flanges with Oversized exhaust ports
  • Specs:

  • Brand: JBA Performance
  • California Proposition 65: WARNING: This product can expose you to chemicals including chromium, which is know to the State of California to cause cancer or birth defects of other reproductive harm. For more information, visit www.p65warnings.ca.gov
  • CARB EO #: D-57-48
  • Catalytic Converter(s) Included: No
  • Collector Diameter: 2.5
  • Collector Port Diameter: 2.5
  • Collector Reducers Included: No
  • Color: Grey
  • Design: Shorty
  • Finish: Uncoated
  • Flange Thickness: 46089
  • Gasket Or Seal Included: Yes
  • Gaskets Included: Yes
  • Grade Type: Performance
  • Header Material: 409 Stainless Steel
  • Header Style: Shorty
  • Mounting Hardware Included: Yes
  • Oxygen Sensor Port: Yes
  • Primary Tube Outside Diameter: 1.625
  • Primary Tubing Diameter: 1.625
  • Sheen Level: Matte
  • Tube Wall Thickness: 0.059
  • Part Number: 1840S-4
  • Emissions:

    • 1 - This product has been granted a California Air Resources Board (CARB) Executive Order (EO Number) Exemption. It is 50 State Legal when installed on the Specified vehicle per the Manufacturer’s Current Application Guide, the CARB EO, and Installation Instructions.

    Instructions:

    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 83424019638

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    Angela Benton
    Houston, US
    ★★★★★ 5
    Will buy again
    Color: Walnut, Size: 2 Pack
    Great color, hardwear was easy to install, quality great, very stable, all in great fit great size and love the look
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    Reviewed in the United States on March 27, 2026
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    Judy V.
    Dallas, US
    ★★★★★ 5
    Good product at a reasonable price.
    Color: Grey, Size: 2 Pack
    The shelves were easy to install, are sturdy and look good.
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    Reviewed in the United States on April 14, 2026
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    Shelly Desrosiers
    Louisville, US
    ★★★★★ 5
    Highly recommend these shelves
    Color: Black, Size: 2 Pack
    Love these shelves! Easy to put up, stylish, well made and mounting hardware feels secure. Love the fine details of the included screws and anchors and small tabs to cover screws underneath.
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    Reviewed in the United States on May 27, 2026
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    frequentbuyer
    Houston, US
    ★★★★★ 4
    Stylish and affordable!
    Color: Grey, Size: 4 Pack, Color: Grey, Size: 4 Pack
    These shelves are rey stylish, light and durable! The set came with everything needed to install. The color is just as described. Price is steal and these shelves can definitely be used anywhere throughout the house. I did give it only 4 stars because as you can see in the photos, the underneath was not completely finished. Decided to keep because the price was unbeatable.
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    Reviewed in the United States on April 5, 2026
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    todd
    Los Angeles, US
    ★★★★★ 5
    Great shelves
    Color: Mahogany, Size: 2 Pack
    Love these! Easy install and they look great. Very sturdy.
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    Reviewed in the United States on May 14, 2026

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