1. Manifolds & Headers Offered
  2. sku: 7671641140046791
  3. DOUGS HEADERS D314-B

DOUGS HEADERS D314-B Header 694342543464

D314-b Dougs Headers Header

( Brand: Dougs Headers ), ( Part Type: Header ), ( Material: Steel ), ( Important Notes: Will Not Fit Manual Transmission Cars With Factory Z Bar Clutch L ), ( 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 7/8 In. ), ( Header Outlet Diameter: 3.000 In. ), ( Header Port Style: Round ), ( Primary Tube Gauge: 16-gauge ), ( UPC: 694342543464 ), ( Manufacturer Part Number: D314-B )

Review DOUGS HEADERS Header

Doug's Headers D314-B is a high-performance header designed for serious racers and enthusiasts seeking maximum power gains and improved engine performance. This header is engineered specifically for Ford 302 and 351 Cleveland engines, and is constructed from premium T304L stainless steel, known for its superior corrosion resistance and strength.

The D314-B header features a 1 5/8-inch primary tube diameter, which is larger than the stock header, allowing for increased exhaust flow and reduced back pressure. This results in improved engine breathing and more efficient combustion, leading to increased horsepower and torque.

The header comes with collectors that are designed to optimize exhaust scavenging and reduce exhaust gas recirculation. The collector design also allows for a more even exhaust pulse, leading to improved engine performance and power delivery.

The header is also equipped with 3/8-inch vacuum-secondary oxygen sensors mounting bosses, allowing for easy installation of aftermarket oxygen sensors for use with performance tuning systems. The header is also compatible with factory catalytic converters for use in emissions-compliant applications.

The D314-B header is fully welded, ensuring a strong and durable design. The welds are also smoothed and polished for a high-quality finish. The header comes with all necessary hardware for installation, including gaskets and bolts.

In summary, Doug's Headers D314-B is a high-performance header designed for Ford 302 and 351 Cleveland engines. Constructed from premium T304L stainless steel, it features a larger primary tube diameter for improved exhaust flow and reduced back pressure, optimized collector design for improved exhaust scavenging, and vacuum-secondary oxygen sensors mounting bosses for use with performance tuning systems. The header is fully welded, ensuring a strong and durable design, and comes with all necessary hardware for installation.

Doug's Headers D314-B headers are aftermarket performance parts designed for Ford 5.0L Coyote engines. These headers are known for their high-performance design and ability to improve engine breathing and power output. Here are some pros and cons of buying Doug's Headers D314-B headers:

Pros:

1. Increased horsepower and torque: Doug's Headers D314-B headers are designed to improve the flow of exhaust gases, which can lead to increased horsepower and torque.

2. Improved engine response: By reducing backpressure and improving exhaust flow, these headers can help the engine respond more quickly and efficiently.

3. Enhanced exhaust sound: These headers are known for producing a great exhaust note, which can be a desirable feature for many car enthusiasts.

4. Durable construction: Doug's Headers uses high-quality materials and construction techniques to ensure that their headers can withstand the rigors of high-performance use.

Cons:

1. Expensive: Doug's Headers D314-B headers are a premium aftermarket part, and they come with a premium price tag.

2. Installation complexity: Installing these headers requires some mechanical skill and experience. It may be necessary to remove the catalytic converters and exhaust manifolds, which can be a complicated process.

3. May require additional modifications: In some cases, installing these headers may require additional modifications to the engine or exhaust system to ensure proper fitment and function.

Conclusion:

Doug's Headers D314-B headers are a high-performance aftermarket part that can provide significant power gains, improved engine response, and a great exhaust note. However, they come with a premium price tag and require some mechanical skill to install. If you are looking to maximize the performance of your Ford 5.0L Coyote engine and are willing to invest the time and money, then these headers could be a great choice.

Recommendation:

If you are serious about maximizing the performance of your Ford 5.0L Coyote engine and have the necessary mechanical skills and budget, then Doug's Headers D314-B headers are a great choice. However, if you are looking for a more cost-effective solution or are not confident in your mechanical abilities, then there are other aftermarket header options available that may be more suitable for your needs. It's always a good idea to do your research and consult with a knowledgeable mechanic or performance shop before making a purchase.

part # d314 prices

  • $511.63-$1123.21

specifications maniheader:

  • brand: Dougs Headers
  • part type: Header
  • material: Steel
  • important notes: Will Not Fit Manual Transmission Cars With Factory Z Bar Clutch L
  • 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 7/8 In.
  • header outlet diameter: 3.000 In.
  • header port style: Round
  • primary tube gauge: 16-gauge
  • upc: 694342543464
  • manufacturer part number: D314-B

offer maniheader:

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

payments maniheader:

  • wallet: Paypal
  • other
  • credit card: Mastercard

returns maniheader:

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

general maniheader:

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

shipping maniheader:

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

seller maniheader:

  • rating: 98.7%
  • # reviews: 1128837
part type: header, important notes: will not fit manual transmission cars with factory z bar clutch l, 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 7/8 in., header outlet diameter: 3.000 in., header port style: round, primary tube gauge: 16-gauge,
category: auto parts > car truck parts accessories > exhaust emission systems > manifolds headers, material: steel, sku: 7671641140046791,

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