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Doug’s Exhaust Header D375Y; 1.625 in. 2.500 in. Tri Y 16 Gauge Silver Ceramic Coated Mild Steel for 1965 to 1977 Chevy 262 to 400
$966.36 Rebate
This item has a $79.09 oversized shipping charge.
See our shipping policy for more details.
Details
- 3/8 in. thick machined flanges to prevent warping
- CNC mandrel bent tubes ensure accurate fit and better flow
- Heavy 16-guage tubing for longer life
- Tubes are pre-polished to removed scratches before applying metallic ceramic or hi-temp black coating
Product Description
Doug's is the pioneering force behind the popular TRI-Y design for cars and trucks. The unique, shortend, paired primary tubes increase mid-range torque without sacrificing top end power. TRI-Y's are a great choice for daily drivers and heavy duty trucks looking to increase power from idle up to 4500 RPM while maintaining maximum fuel efficiency. This fitment is tailored for popular aftermarket engine swap kits. Doug's engine swap headers were developed to solve common fitment issues in tight spaces, making your swap process smoother. No more guesswork or modifications needed - just straightforward installations that save you time and frustration.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Specifications
- Year:
- 1965 to 1977
- Make:
- Chevy
- Engine:
- 262 to 400
- Header Style:
- Tri Y
- Header Material:
- Mild Steel
- Header Finish:
- Silver Ceramic Coated
- Primary Tube Diameter (in):
- 1.625 in.
- Collector Attachment:
- 3 Bolt Flange
- Collector Diameter:
- 2.500 in.
- Primary Tube Gauge:
- 16 Gauge
- Flange Thickness (in):
- 3/8 in.
- Includes Bolts/Studs:
- Yes
- Includes Gaskets:
- Yes
- Includes Reducers:
- Yes
- Quantity:
- Sold As Set
Rebate Information
Hot Rod Season = Hot Rebates from Doug’s Headers!
This summer, Doug’s Headers is turning up the heat with rebates from $50 to $225 on select performance exhaust components!
Whether you're building a street machine, a classic muscle car, or a weekend track beast, now's your chance to upgrade and get cash back on proven performance.
Eligible Products Include:
- Headers
Rebate Tiers:
- Save $100 on the qualifying product purchased.
But don’t wait—this limited-time offer. All rebate submissions must be received by 9/30/2025.