Stainless Works 2003-11 Crown Victoria/Grand Marquis 4.6L Headers 1-5/8in Primaries 3in H-Flow Cats

The Stainless Works 2003-2011 Crown Victoria and Grand Marquis 4.6L headers are high-performance exhaust components designed to enhance engine flow and overall vehicle performance. Constructed from durable stainless steel and TIG welded for precision, these headers feature 1-5/8 inch primary tubes and 3-inch slip-fit collectors, ensuring optimal exhaust scavenging. The design promotes increased horsepower and torque while maintaining excellent durability and corrosion resistance. The inclusion of necessary O2 extensions and clamps facilitates a straightforward installation, making these headers a reliable upgrade for enthusiasts seeking improved sound and power.

These headers are specifically engineered to fit 2003-2011 Crown Victoria and Grand Marquis models equipped with the 4.6L 2V engine, aligning with the factory flanged connection points. They serve as a direct replacement upgrade for stock manifolds, suitable for street and performance applications. The kit includes all required mounting hardware and components for a seamless fit. Ideal for daily drivers, street performance, or track use, these headers deliver enhanced exhaust flow and engine efficiency, providing a noticeable performance boost while maintaining OEM fitment standards.