Doug's Headers - D521
- Fast US Shipping
- 30-Day Returns
- Secure Checkout
Shipping & Returns
Most orders ship within 1–2 business days from US warehouses. Tracking is emailed as soon as your order is on its way.
30-day hassle-free returns on unused parts in original packaging. Read the full returns policy
Overview
Upgrade your Pontiac's performance with Doug's Headers HDR PON CAT 326-455 headers, designed specifically for 1965-1968 models. These long tube headers provide a significant boost in horsepower and torque by enhancing exhaust flow, allowing your engine to breathe better.
- Long tube design maximizes exhaust scavenging for improved performance.
- Silver ceramic coating offers durability and a sleek appearance while resisting corrosion.
- Standard flange style ensures easy installation and compatibility with your existing setup.
- Includes gaskets and collector reducers for a hassle-free installation experience.
- Crafted from 16-gauge steel for strength and reliability under high-performance conditions.
These headers feature a D-port cylinder head shape and a 3-bolt flange collector attachment, making them a perfect fit for your Pontiac V8. Elevate your ride’s performance with Doug's Headers.
Experience the difference in power and efficiency with these high-quality headers.
- Genuine part — manufacturer part number D521
- Ships fast from US warehouses
- 30-day hassle-free returns
Specifications
| Brand | Doug's Headers |
| Part # | D521 |
| GTIN | 00694342509767 |
Frequently Asked Questions
What is the purpose of the HDR PON CAT 326-455 headers?
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