DOUGS HEADERS D317-B Header 694342544140

( Brand: Dougs Headers ), ( Part Type: Header ), ( Material: Steel ), ( Manufacturer Part Number: D317-B ), ( Seller: Summit Racing Equipment ), ( Header Flange Thickness: 3/8 In. ), ( Header Style: Full-length ), ( 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: 694342544140 )

Review DOUGS HEADERS Header

The Doug's Headers D317-B is a high-performance header designed for serious racers and enthusiasts seeking maximum power gains and exceptional exhaust flow. This header is engineered specifically for select GM LS engines, providing a free-flowing exhaust path for improved engine breathing and increased horsepower.

Constructed from 304 stainless steel, the D317-B header is built to withstand the extreme temperatures and corrosive environments commonly found in racing applications. Each collector is meticulously crafted using a 3-inch primary tube diameter, which maximizes exhaust velocity and scavenging for optimal power gains.

The header features a 1 5/8-inch collector diameter that merges seamlessly into a high-performance race exhaust system, ensuring a perfect fit and efficient exhaust flow. The collectors utilize a 3-bolt flange design, which offers superior strength and ease of installation compared to traditional 4-bolt designs.

Each collector is precision-tuned with H-pipe primary tubes, which optimize exhaust scavenging and minimize backpressure. The header's design also reduces exhaust gas turbulence, resulting in a smoother and more efficient exhaust flow that delivers more power to the wheels.

The D317-B header is CNC-machined and hand-welded to ensure the highest level of precision and quality. The header's welds undergo rigorous inspection to ensure they are free of defects and meet Doug's Headers' stringent standards for durability and performance.

Installing the D317-B header is a straightforward process, thanks to its bolt-on design and detailed instructions provided by Doug's Headers. The header comes with new gaskets and hardware, ensuring a hassle-free installation experience for the user.

In summary, the Doug's Headers D317-B is a high-performance header designed for serious racers and enthusiasts seeking maximum power gains, exceptional exhaust flow, and superior build quality. Its 304 stainless steel construction, 3-inch primary tubes, and 3-bolt flange design make it a top choice for those looking to extract every last bit of power from their GM LS engine.

Doug's Headers D317-B Headers: A Detailed Analysis

Doug's Headers D317-B headers are aftermarket performance exhaust headers designed to replace the stock headers on various GM applications. These headers are known for their high-performance design and durability. In this analysis, we will discuss the pros and cons of investing in Doug's Headers D317-B headers.

1. Enhanced Performance: Doug's Headers D317-B headers are designed to increase exhaust flow, which leads to improved performance. By providing a larger primary and collector diameter, these headers help to reduce exhaust backpressure, allowing the engine to breathe better and produce more power.

2. Better Gas Mileage: The improved exhaust flow can lead to better gas mileage due to the more efficient combustion process. This can save you money in the long run, especially if you drive a lot.

3. Durability: Doug's Headers D317-B headers are made from high-quality materials, including 304 stainless steel, which ensures they can withstand the rigors of high-performance driving. They also come with a lifetime warranty, giving you peace of mind.

4. Improved Sound: The Doug's Headers D317-B headers offer a unique exhaust note, providing a deeper and more aggressive sound. This can be a desirable feature for performance enthusiasts.

5. Easy Installation: Doug's Headers D317-B headers come with all necessary hardware for installation, making the process relatively straightforward. The headers are also designed to fit perfectly, minimizing the need for extensive fabrication.

1. Cost: Doug's Headers D317-B headers can be quite expensive compared to stock headers. The price may be a deterrent for some enthusiasts, especially those on a tight budget.

2. Loud Exhaust: The improved exhaust flow can result in a louder exhaust note, which may not be desirable for those who value a quieter ride.

3. Fitment: While Doug's Headers D317-B headers are designed to fit various GM applications, there may be some fitment issues depending on the specific vehicle. It is essential to ensure that the headers will fit your vehicle before making a purchase.

4. Requires Catalytic Converter: Doug's Headers D317-B headers do not come with catalytic converters, meaning you will need to purchase them separately. This can add to the overall cost.

5. Potential Emissions Issues: Depending on local regulations, the lack of catalytic converters may result in emissions issues, leading to potential fines or other penalties.

Doug's Headers D317-B headers offer several advantages for performance enthusiasts, including enhanced power, better gas mileage, durability, improved sound, and ease of installation. However, they also come with some disadvantages, such as a high cost, potential fitment issues, a loud exhaust note, and the requirement for separate catalytic converters. Ultimately, the decision to invest in Doug's Headers D317-B headers depends on your specific needs, budget, and priorities. If you are looking for maximum power and a unique exhaust note, these headers may be worth the investment. However, if you value a quieter ride, are concerned about emissions, or have a limited budget, other options may be more suitable for you.

If you are serious about performance and are willing to invest in high-quality headers, Doug's Headers D317-B headers could be an excellent choice. However, it is crucial to ensure that they will fit your vehicle and that you are prepared for the additional costs associated with catalytic converters. If you are unsure about the investment or have concerns about emissions, it may be wise to consider alternative options or consult with a professional mechanic or exhaust specialist before making a decision.

part # d317 prices

• $1243.61-$1632.22

specifications maniheader:

• brand: Dougs Headers
• part type: Header
• material: Steel
• manufacturer part number: D317-B
• seller: Summit Racing Equipment
• header flange thickness: 3/8 In.
• header style: Full-length
• 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: 694342544140

seller maniheader:

• # reviews: 1124040
• rating: 99.0%

shipping maniheader:

• class: Economy
• service: Economy
• cost: $0.00
• type: Fixed
• transit: 2-5 Days

general maniheader:

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

offer maniheader:

• quantity: 4
• started: February 24, 2025
• options: Ship-to-home
• sold: 0
• availability: In Stock

payments maniheader:

• wallet: Paypal
• credit card: Discover
• other

returns maniheader:

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

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