JBA Exhaust Headers for Chevy GMC Blazer S10 Blazer S10 4.3L V6 - 1840S-4JS
SKU: 66489407234

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

Sale price$402.48 Regular price$447.20
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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-4JSOverview: 02 03 GM S Truck Cat4Ward 4. 3L Silver Ctd 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 Silver Ctd

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: Metallic Ceramic Coated
  • 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: Semi-Gloss
  • Tube Wall Thickness: 0.059
  • Part Number: 1840S-4JS
  • 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.
    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: 66489407234

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    Megan Thomas
    Boise, US
    ★★★★★ 5
    Gear set!
    Amazing kit lasts a long time and makes my skin so smooth and hydrated.
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    Reviewed in the United States on June 5, 2026
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    Harley Smith
    Grantham, US
    ★★★★★ 5
    Very good, helps with pcos acne and dark spots
    I have pcos, so my acne and dark marks from acne can get pretty severe, in one use there was a visible change. It doesn't have an intense fragrance. It doesn't make my skin feel heavy, sticky, or greasy. My skin feels healthier and holds moisture better. It has a good amount of product in each container. I'd say its definitely got a good amount of value for the money.
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    Reviewed in the United States on May 5, 2026
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    Jacqueline
    Bozeman, US
    ★★★★★ 5
    Good Molecule
    I tried their one product once and it was very good, so when I saw the set range - I definitely had to get it. A great set introduction to this line of brand. It’s light, it works and the price bracket is friendly on your wallet.
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    Reviewed in the United States on May 11, 2026
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    veronique francis
    West Palm Beach, US
    ★★★★★ 5
    Hydrated & Bright: My Good Molecules Review
    ​I recently overhauled my daily skincare routine with a full lineup from Good Molecules, and the results have been nothing short of wonderful. I've been consistently using their cleanser, toner, hyaluronic acid, Wakeup Eye Gel, and daily moisturizer, and my face has completely transformed. Overall, my skin feels incredibly soft, looks noticeably brighter, and stays perfectly moisturized all day long.
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    Reviewed in the United States on May 20, 2026
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    Dazzmine Bailey
    Phoenix, US
    ★★★★★ 5
    Good combo for the price
    I have eczema which causes me to have very dry skin. I have been using this for 3 weeks and only had 1 breakout which I don’t think correlated. I did go in with extra moisturizer on top of the moisturizer that is included.
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    Reviewed in the United States on March 23, 2026

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