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Doug's Headers D368 Long Tube Performance Headers

(1967-1969 Chevrolet Camaro; 1968-1974 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 D320

Manufacturer

Picture for manufacturer Doug's Headers

Part Number

D368
12 reviews
Sale Price

$869.51

3 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 D368 long tube performance headers are engineered to deliver maximum exhaust flow and horsepower gains through precision manufacturing and quality construction. These headers feature CNC mandrel-bent tubing that maintains consistent diameter throughout each bend, ensuring smooth exhaust flow and optimal scavenging efficiency.

Key Features:

  • 3/8-inch thick machined flanges resist warping and ensure leak-free sealing even under extreme heat cycles
  • CNC mandrel bent tubes provide accurate fitment and superior flow characteristics compared to crush-bent alternatives
  • Heavy 16-gauge steel tubing construction for durability and long service life
  • Precision formed long transition collectors reduce backpressure and optimize exhaust velocity
  • Long tube design maximizes mid-range to high-RPM horsepower and torque gains
  • Engineered to improve throttle response and exhaust note

Doug's Headers are manufactured in the USA with a focus on fitment accuracy and performance. The long tube design and quality collectors work together to reduce exhaust restriction, allowing your engine to breathe more efficiently throughout the RPM range.

Products specifications

Fits

1967-1969 Chevrolet Camaro; 1968-1974 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)

1 3/4 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

Nice

Exact parts. No hassles and fast delivery at a good price. Can't beat that.

Easy process the best

Great product, and delivery was on time with no issues. I do recommend.

Perfect!

So far it's great. Fast and easy to use and price and shipping were very good.

Some item descriptions are incomplete making the shopping experience a bit confusing. Otherwise, there’s a lot of options, and check out is quick and simple.

The floor mats I purchased for my car work like a dream. They were just as described in the listing. The shipping was also pretty quick. I just wish the price was about $20 cheaper. Other than that I was completely satisfied.

easy - nice to be able to pay via amazon. Quick delivery, all as promised. Product: Titan SideKick tank. Tank and ground seem well made. Shape allows mounting with minimal interference with bed layout. My PowerTrax bed cover moves freely above the SideK

Pretty nice online store would do business again

Low prices, Fast shipping and great service!

Quick and efficient, Thank You!

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