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Doug's Headers D320 Long Tube Performance Headers

(1967-1969 Chevrolet Camaro; 1969-1972 Chevrolet Nova; 1968-1969 Chevrolet Chevy II; 1967-1969 Pontiac Firebird)

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

Other options in this family: Doug's Headers D567 Doug's Headers D368

Manufacturer

Picture for manufacturer Doug's Headers

Part Number

D320
13 reviews
Sale Price

$1,115.09

2 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 D320 long tube headers are engineered to deliver maximum performance through precision construction and superior design. These headers feature CNC mandrel-bent tubing that ensures accurate fitment and optimal exhaust flow, while thick 3/8" machined flanges resist warping under extreme heat conditions.

Key Features:

  • 3/8" thick machined flanges prevent warping and ensure leak-free sealing
  • CNC mandrel-bent tubes maintain consistent diameter for improved exhaust flow
  • Heavy-duty 16-gauge steel tubing construction for durability
  • Long tube design with precision-formed transition collectors
  • Reduces backpressure to increase horsepower at higher RPM ranges
  • Long transition collectors optimize exhaust scavenging

The long tube design combined with properly engineered collectors helps reduce exhaust backpressure, allowing your engine to breathe more efficiently and produce more power where it counts. The heavy 16-gauge tubing provides excellent durability while maintaining performance characteristics, making these headers an ideal upgrade for enthusiasts seeking reliable power gains.

Products specifications

Fits

1967-1969 Chevrolet Camaro; 1969-1972 Chevrolet Nova; 1968-1969 Chevrolet Chevy II; 1967-1969 Pontiac Firebird

Bolts/Studs Included

Yes

Collector Attachment

3-bolt flange

Cylinder Head Port Shape

SAP

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)

2 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

Finish

Metallic Ceramic Coated

EmissionFullDES

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

Great Service

Fast shipping and great prices

It was easy to order got to my house in little to no time at all. But the part I ordered did not fit my car even tho it was said to fit the car.

Decent shipping time and product was just what we ordered.

Easy to order

First time customer.

Great experience

Good service.

I saved so much by using Autoplicity! The shipping was fast and the website easy to navigate. I will use Autoplicity for all my future needs.

Good fast shipping. Easy ordering.

Awesome company to deal with! Had the best price I could find on the internet and then they even gave me 25% off my shipping cost. Ordering was easy and received delivery information with tracking quickly. I will for sure use them again!!<br><br>

Fantastic ! Ordered a Weather Tech Cargo Liner for my 2012 Ford Explorer. Price was $60 less here than ALL other sites on web. I was skeptical that this was going to be a counterfeit -- as the price was too good to be true. I was extremely happy to receive the genuine product as I expected in less than a week -- and for $60 less than the competitors ! GREAT VALUE and great service ! I will definitely be back !!

Wow Super fast shipping, right product, no hassle no fuss. just how i like it. good job autoplicity keep it up.

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