SKU: 66910197681

JBA Exhaust Headers for Ford Mustang 4.6L V8 for 1999-2004 Stainless Coated - 6635S

$438.07 $486.74
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Description

JBA Exhaust Headers for Ford Mustang 4.6L V8 for 1999-2004 Stainless Coated - 6635SOverview: 99 04 Mustang Long Tube 4. 6L Raw 409 JBA long tube headers are the number one choice for maximum performance gains and high RPM efficiency. Available in 409 or 304 Series Stainless Steel. These long tube designs are dyno and race proven to deliver the greatest possible increase in horsepower and torque throughout the RPM range. All JBA long tube headers feature large mandrel bent stainless steel primary tubes, oversized exhaust ports, extra

Overview:

99-04 Mustang Long Tube 4.6L Raw 409

JBA long tube headers are the number one choice for maximum performance gains and high RPM efficiency. Available in 409 or 304 Series Stainless Steel. These long tube designs are dyno and race proven to deliver the greatest possible increase in horsepower and torque throughout the RPM range. All JBA long tube headers feature large mandrel-bent stainless steel primary tubes, oversized exhaust ports, extra thick 3/8 one-piece flanges, and proprietary JBA Firecone® merged collectors for smooth flow. Each system is designed to give the maximum amount of ground clearance possible, so lowered cars do not drag the collectors.

Features:

  • 3/8" thick CNC laser-cut flanges
  • Patented JBA Firecone® collector
  • O2 sensor provisions
  • Large diameter mandrel-bent steel tubes
  • 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
  • Catalytic Converter(s) Included: No
  • Collector Diameter: 2.5
  • Collector Port Diameter: 2.5
  • Collector Reducers Included: No
  • Color: Grey
  • Design: Full-length
  • Finish: Uncoated
  • Flange Thickness: 46089
  • Gasket Or Seal Included: Yes
  • Gaskets Included: Yes
  • Grade Type: Performance
  • Header Material: 409 Stainless Steel
  • Header Style: Full-length
  • Mounting Hardware Included: Yes
  • Oxygen Sensor Port: Yes
  • Primary Tube Outside Diameter: 1.75
  • Primary Tubing Diameter: 1.75
  • Sheen Level: Matte
  • Tube Wall Thickness: 0.059
  • Part Number: 6635S

    • Applications:

    • 1999-2004 Ford Mustang 281 CID

    • Emissions:

    • This Product is LEGAL for Closed Course Competition use or Pre-Emissions Controlled Vehicles ONLY. It is Not Legal for use on any Emissions Controlled Vehicle for Street or Off Highway use.

    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: 66910197681

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    4.5 ★★★★★
    Based on 2071 reviews
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    J
    Verified Purchase
    Jeremey
    Dallas, US
    ★★★★★ 5
    Great Looking Shelf
    Color: Brown, Size: 4Tier48in, Color: Brown, Size: 4Tier48in
    I love this shelf! It took two people to hang it and you definitely want to ensure you hit a stud on at least one side or 1-2 screws if mounting between studs. It is heavy but a single person can lift it, just not maneuver easily due to its dimensions. It has a ton of room and fits mini helmets nicely in my office. Where I mounted it made it difficult to an extent to install but if you are even somewhat handy, you’ll be fine. You absolutely need a stud finder to hang this shelf. Sorry, I’m married! I would buy this shelf, or versions of it, again. Very practical and useful to display autographs, housewares or decor. Last note: do not over tighten the poles. The wood is soft and the poles are light weight. They are not traditional black pipe and weigh far less.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on November 11, 2025
    J
    Verified Purchase
    Jennifer Houben
    Battle Creek, US
    ★★★★★ 5
    Very satisfied!
    Color: Brown, Size: 3Tier48in, Color: Brown, Size: 3Tier48in
    Quality product, very sturdy, real wood shelves, easy to put together and mount. Not too heavy and the size is nice.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 12, 2026
    H
    Verified Purchase
    Hayley C
    Houston, US
    ★★★★★ 5
    AWESOME Look and Quality
    Color: Brown, Size: 2Tier60in
    I love these shelves and have bought additional for other areas in the house. I love the look of the industrial pipes, the color of the shelves is perfect, they are sturdy and hold a lot of weight. They are somewhat difficult to assemble, but it's expected as hanging shelves are never fun to hang. I love them. If you are on the fence, just do it :)
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on October 10, 2025
    D
    Verified Purchase
    Dustin O
    Port Orchard, US
    ★★★★★ 4
    Nice, but a bear to install
    Color: Black, Size: 3Tier48in
    Quality product that looks good on our shiplap wall of the wet bar space. The install was a real trip and extremely difficult. You definitely need 2 or more people to install as the direction tell you to put the entire item together, then hang on the wall. This makes it impossible to do yourself.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 20, 2026
    S
    Verified Purchase
    Stevie St. Onge
    Cuba, US
    ★★★★★ 5
    Exactly what I was looking for
    Color: Brown, Size: 3Tier48in, Color: Brown, Size: 3Tier48in
    Very sturdy shelves and super easy to put together. I would put the shelves together starting with the bottoms then after it’s put together tighten everything up also starting from the bottom.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 16, 2026

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