THMotorsports Logo

Your cart

Your Cart

Doug's Headers D313-R 3/8" Thick Machined Flanges...no Warping; Cnc Mandrel Bent Tubes... Accurate Fit & Better Flow; Precision Formed Long Transition Collectors And Long Tube Design... Reduces Backpressure And Increases Higher Rpm Horsepower; Heavy 16 Gauge Tubing...longer Li

Manufacturer

Doug's Headers

Picture for manufacturer Doug's Headers D3349-B Exhaust Header Set - Ls Swap Gm A-Body 64-67

Part Number

D313-R
5 reviews
04/25/2034 2:28 AM
Sale Price

$622.23

Out of Stock

Notify me when available
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

Doug's Headers D313-R 3/8" Thick Machined Flanges...no Warping; Cnc Mandrel Bent Tubes... Accurate Fit & Better Flow; Precision Formed Long Transition Collectors And Long Tube Design... Reduces Backpressure And Increases Higher Rpm Horsepower; Heavy 16 Gauge Tubing...longer Li

Doug's Headers D313-R

Products specifications

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

Natural

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 - Short Label

warning.jpg

EmissionFullDES

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

Fantastic prices + free shipping! What more could one ask for? Looking forward to my new coilover kit! Cheers!

Excellent prices and speedy shipping. 1st time buying from autoplicity and won't be the last. Defanitely will be the first place I check for auto parts.

Best price anywhere for a brand name item. Fast inexpensive shipping!

Best prices on the internet and fast at getting the product out. Thanks!

Product was exactly what I ordered and was sent fast. I will definitely order more products from Autoplicity. Great Site, fast service!

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy