DOUGS HEADERS D329-B Header 694342543679

( Brand: Dougs Headers ), ( Part Type: Header ), ( Material: Steel ), ( Seller: Summit Racing Equipment ), ( Header Flange Thickness: 3/8 In. ), ( Header Style: Fenderwell ), ( Header Finish: High Temperature Black Paint ), ( Header Primary Tube Size: 1 3/4 In. ), ( Header Outlet Diameter: 3.000 In. ), ( Header Port Style: Sap ), ( Primary Tube Gauge: 16-gauge ), ( UPC: 694342543679 ), ( Manufacturer Part Number: D329-B )

Review DOUGS HEADERS Header

Doug's Headers D329-B is a high-performance exhaust header designed for Ford 302 and 351 Cleveland engines. This header is a must-have for anyone looking to enhance the power and efficiency of their engine.

This header is manufactured using premium T304 stainless steel, which is known for its strength, durability, and resistance to corrosion. The T304 material ensures that the header will last for years, even in the most demanding driving conditions.

The D329-B header features a 1 5/8-inch primary tube diameter, which provides excellent exhaust flow and scavenging. The collector design is carefully engineered to ensure a smooth and even exhaust pulse, which translates into better power and torque.

The header comes with 5/16-inch thick flanges, which are thicker than OEM flanges, ensuring a secure and leak-free installation. The flanges are also designed to work with factory exhaust manifolds, making installation a breeze for those who prefer not to modify their engine.

One of the standout features of the D329-B header is its ability to improve engine breathability, which leads to increased power and improved fuel efficiency. The header's design allows for a more efficient exhaust flow, reducing backpressure and allowing the engine to breathe more freely.

Another advantage of the Doug's Headers D329-B header is its ability to reduce exhaust temperatures. The header's design allows for more even exhaust flow, which reduces the likelihood of hot spots forming in the exhaust system. This can lead to improved engine performance and longer engine life.

The D329-B header is a direct replacement for the factory exhaust manifold and comes with all necessary gaskets and hardware for installation. It is also CARB-legal for use in California, making it a great choice for those looking to comply with emissions regulations.

In summary, the Doug's Headers D329-B header is a high-quality, performance-enhancing exhaust header for Ford 302 and 351 Cleveland engines. It is made from premium T304 stainless steel, features a collector design that improves exhaust flow and reduces backpressure, and comes with all necessary hardware for installation. Whether you're looking to increase power and efficiency or simply want to upgrade your exhaust system, the D329-B header is an excellent choice.

Doug's Headers, specifically model D329-B, are aftermarket performance headers designed to improve the exhaust flow in your vehicle's engine, resulting in better performance and increased horsepower. Here are some potential pros and cons of purchasing these headers:

1. Increased Horsepower: Doug's Headers are known for their ability to increase horsepower by improving exhaust flow. The D329-B headers, in particular, are designed for Ford 5.0L Coyote engines and can provide a noticeable power boost.

2. Improved Throttle Response: The improved exhaust flow can lead to better throttle response, making your vehicle feel more responsive and quicker off the line.

3. Enhanced Sound: The headers can also provide a more pleasing exhaust note, adding to the overall driving experience.

4. Durability: Doug's Headers are made from high-quality materials, ensuring they can withstand the rigors of regular use and provide long-lasting performance.

1. Cost: Doug's Headers are a premium aftermarket product and can be quite expensive compared to stock headers.

2. Installation Complexity: Installing headers can be a complex and time-consuming process, requiring specialized tools and expertise. It may be necessary to hire a professional to ensure the job is done correctly.

3. Potential for Leaks: Headers are prone to leaks, especially if not installed correctly. Leaks can lead to loss of performance and potential engine damage.

4. Fitment: While Doug's Headers are designed to fit specific engine models, there may still be some fitment issues that need to be addressed during installation.

Doug's Headers, including the D329-B model, offer significant performance benefits for Ford 5.0L Coyote engines. However, they also come with a higher cost, installation complexity, potential for leaks, and fitment considerations. Weighing these pros and cons, it is recommended that potential buyers carefully consider their budget, installation capabilities, and desired performance enhancements before deciding to purchase Doug's Headers. If you are confident in your installation skills and willing to invest in the performance benefits, Doug's Headers can be a worthwhile investment.

part # d329 prices

• $1226.77-$1437.73

specifications maniheader:

• brand: Dougs Headers
• part type: Header
• material: Steel
• seller: Summit Racing Equipment
• header flange thickness: 3/8 In.
• header style: Fenderwell
• header finish: High Temperature Black Paint
• header primary tube size: 1 3/4 In.
• header outlet diameter: 3.000 In.
• header port style: Sap
• primary tube gauge: 16-gauge
• upc: 694342543679
• manufacturer part number: D329-B

seller maniheader:

• # reviews: 1128840
• rating: 98.7%

shipping maniheader:

• service: Economy
• type: Fixed
• cost: $0.00
• transit: 3-5 Days
• class: Economy

returns maniheader:

• policy: Returns Accepted
• paid by: Seller
• time: 60 Days

payments maniheader:

• wallet: Apple-pay
• credit card: Mastercard
• other

general maniheader:

• condition: New
• Car Truck Parts Accessories > Exhaust Emission Systems > Manifolds Headers

offer maniheader:

• options: Ship-to-home
• availability: In Stock
• started: August 23, 2025
• quantity: 3
• sold: 0

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