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Doug's Headers D567 Long Tube Performance Headers

(1964-1972 Pontiac GTO; 1964-1972 Pontiac LeMans; 1964-1970 Pontiac Tempest)

Part of: Doug's Headers Long Tube Performance Exhaust Header

Other options in this family: Doug's Headers D368 Doug's Headers D320

Manufacturer

Picture for manufacturer Doug's Headers

Part Number

D567
18 reviews
Sale Price

$1,100.38

4 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

Doug's Headers D567 long tube performance headers deliver maximum exhaust flow and horsepower gains through precision engineering and premium construction. These headers feature CNC mandrel-bent tubing that maintains consistent diameter throughout each bend, ensuring smooth exhaust flow and optimal performance across the RPM range.

Key Features:

  • 3/8-inch thick machined flanges prevent warping and ensure proper sealing under extreme heat and pressure
  • CNC mandrel bent tubes maintain consistent internal diameter for accurate fitment and improved exhaust velocity
  • Precision formed long transition collectors reduce turbulence and backpressure for enhanced high-RPM horsepower
  • Heavy-duty 16-gauge steel tubing construction provides durability and heat resistance
  • Long tube design maximizes scavenging effect and exhaust evacuation efficiency

The combination of thick machined flanges, mandrel-bent construction, and long tube design makes these headers an excellent choice for enthusiasts seeking reliable performance gains and professional-grade quality. The heavy 16-gauge tubing ensures long-lasting durability even under demanding conditions.

Products specifications

Fits

1964-1972 Pontiac GTO; 1964-1972 Pontiac LeMans; 1964-1970 Pontiac Tempest

Bolts/Studs Included

Yes

Collector Attachment

3-bolt flange

Cylinder Head Port Shape

Round

Flange Style

Standard

Flange Thickness (in)

3/8 in.

Header Finish

Ceramic coated

Header Material

Steel

Header Style

Full-length

Motor Mounts Included

No

Primary Tube Diameter (in)

1 7/8 in.

Primary Tube Gauge

16-gauge

Quantity

Sold as a pair.

Reducers Included

Yes

Transmission Mount Included

No

Tuned

No

Weld-Up

No

Y-Pipe Included

No

Prop 65

Yes

EmissionFullDES

2 - This product is Legal for use on 1974 and older Non-Catalyst equipped vehicl

Finish

Metallic Ceramic Coated

Great service good product

This is the 1st time I've ordered from you............... and I'll be back for future orders.

Fast delivery and great price

Fast and super easy to use.

Wasn't what I expected i was needing the complete keyless entry key thob not just a plastic case,absolutely not what i wanted or to my knowledge what i ordered.otherwise easy ordering and fairly quick shipping.

Item arrive in a very timely manner and was priced extremely competitively. Very good experience

Website is very easy to use

Kind of confusing at first. Home address in Washington, but vacationing in Arizona where the jeep is. Ok now though. Thanks

Easy shopping, however the confirmation from the warehouse and then the shipment to my home, took a week. For an overall product purchase it's fine, but if you have your car broken and you are waiting for the part, the waiting time is terrible.

great service and fast shipping and the best prices by far

This place is great! Best price out there! Ordered on Sunday shipped on Monday, and the part fit great! Exactly right and great communication!

great place to order honda parts from ! i will definitely use this siye in the future

This site was just like shopping at a real store. It was easy to make my order and I was able to do it on the go on my smartphone which is important to me that a site is compatible with handheld. Bravo

easy and hassle free buying experience with incredible prices

Cheapest I can find for this product. I would buy from this seller again.

They had two items that I wanted in stock with the lowest price I've seen online anywhere, and had super affordable shipping options.

Great price on the net among other competitors.

Fast shipping. Autoplicity has the best pricing I can find. <br>Very happie.

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