SKU: 77861813808

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 28 - Aug 2

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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: 77861813808

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    C. Quittmeyer
    Houston, US
    ★★★★★ 5
    Nice quality sweater, well made and soft.
    Size: Large, Color: Pure Beige
    I love this sweater - but I bought it just in time for summer, so it won't get much use until fall! It fits great, it is really soft and the overall quality is quite good. I plan to buy another one in another color as well.
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    Reviewed in the United States on May 22, 2026
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    Nola
    Chelsea, US
    ★★★★★ 4
    Nice casual looking sweater
    Size: Small, Color: Pure Black
    I purchased the black/cream inset sweater in a small. I usually wear a small. I fits loose, but NOT baggy. I like the loose fit. The sweater feels so soft. Nice looking sweater. Very happy with the sweater, but could have ordered a medium for a boxier fit.
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    Reviewed in the United States on May 20, 2026
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    Constance Law
    Omaha, US
    ★★★★★ 5
    Good quality & trendy color sweater
    Size: Large, Color: Pure Apricot
    This sweater is very soft, light and very suitable for keeping mild warm at the temperature of 20c or inside an air conditioning room. Particularly, the trendy color for 2026 in brown suede jacket, this sweater is real good matching item! I like it! 😍😍😍
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    Reviewed in the United States on February 27, 2026
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    BETTY HILDRETH
    Alexandria, US
    ★★★★★ 5
    very stylish
    Size: Medium, Color: Pure Apricot
    true to size. very comfortable.
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    Reviewed in the United States on June 1, 2026
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    Cap47
    Boise, US
    ★★★★★ 5
    Great Material
    Love the sweater. So soft.
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    Reviewed in the United States on May 23, 2026

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