DOUGS HEADERS D313-B Header 694342542313

( Brand: Dougs Headers ), ( Part Type: Header ), ( Material: Steel ), ( 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: 694342542313 ), ( Manufacturer Part Number: D313-B )

Review DOUGS HEADERS Header

Doug's Headers D313-B Performance Header System

Doug's Headers D313-B is a high-performance aftermarket header system designed to enhance the exhaust flow of your engine for improved horsepower and torque. This header system is suitable for various applications, including muscle cars, hot rods, and high-performance vehicles.

The D313-B header system is manufactured using premium materials, including 304 stainless steel, ensuring durability and resistance to corrosion. Each header is meticulously crafted with a 1 5/8-inch primary tube diameter, providing a smooth and efficient exhaust flow. The collectors are designed with a 3-inch diameter, which increases the exhaust velocity, reducing backpressure, and allowing the engine to breathe better.

This header system features a 4-1 design, which is a balanced and efficient design for most applications. The collectors merge into a single 3-inch exhaust pipe, making it easier to install and connect to the exhaust system. The header's design also includes removable bungs, which allows for easy installation of exhaust gas oxygen sensors and other monitoring devices.

Doug's Headers pays close attention to detail in their manufacturing process, ensuring that each header is precision-engineered to fit your specific engine make and model. The header gaskets are also included in the kit, ensuring a proper seal and preventing any exhaust leaks.

Installing the D313-B header system is a straightforward process, and it comes with clear and easy-to-follow instructions. The header system is also compatible with most catalytic converters and mufflers, allowing for a smooth transition from the header to the rest of the exhaust system.

In summary, Doug's Headers D313-B is a premium aftermarket header system designed to provide improved engine performance and durability. Its meticulously crafted design, use of high-quality materials, and compatibility with various exhaust systems make it an excellent choice for any vehicle enthusiast looking to enhance their engine's exhaust flow and power output.

Doug's Headers D313-B Headers are aftermarket performance headers designed for various GM applications. These headers are known for their high-performance design and ability to improve engine performance. Here are some pros and cons of buying Doug's Headers D313-B Headers:

1. Enhanced Performance: Doug's Headers D313-B Headers are designed to improve engine performance by reducing exhaust backpressure and providing better gas flow. This results in increased horsepower and torque.

2. Durable Construction: These headers are made from high-quality stainless steel, which makes them durable and resistant to corrosion.

3. Improved Engine Sound: Doug's Headers D313-B Headers produce a distinctive exhaust note, which is often preferred by performance enthusiasts.

4. Easy Installation: These headers come with all necessary hardware for installation, making the process relatively straightforward.

1. Expensive: Doug's Headers D313-B Headers are more expensive than stock headers. This may be a significant investment for some buyers.

2. Loud: The improved exhaust flow can result in a louder exhaust note, which may not be desirable for all applications or driving situations.

3. Compatibility: These headers may not be compatible with all aftermarket exhaust systems or catalytic converters. It is important to verify compatibility before making a purchase.

Doug's Headers D313-B Headers offer significant performance benefits for those seeking to improve the power and sound of their GM engine. However, the high cost and potential compatibility issues may be a concern for some buyers. Ultimately, the decision to purchase these headers depends on individual priorities and budget.

If you are looking for a high-performance exhaust system that delivers increased horsepower and torque, Doug's Headers D313-B Headers may be a good investment. However, it is important to carefully consider the cost and potential compatibility issues before making a purchase. Additionally, be sure to verify that the headers will work with any aftermarket exhaust components you plan to use.

part # d313 prices

• $1031.17-$1339.52

specifications maniheader:

• brand: Dougs Headers
• part type: Header
• material: Steel
• 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: 694342542313
• manufacturer part number: D313-B

payments maniheader:

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

shipping maniheader:

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

offer maniheader:

• sold: 0
• availability: In Stock
• options: Ship-to-home
• started: August 23, 2025
• quantity: 1

returns maniheader:

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

general maniheader:

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

seller maniheader:

• rating: 98.7%
• # reviews: 1128836

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