SKU: 71728115711

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

Sale price$1102.18 Regular price$1224.64
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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21

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Description

Stainless Works 2003-11 Crown Victoria/Grand Marquis 4.6L Headers 1-5/8in Primaries 3in H-Flow CatsExperience unmatched exhaust flow and performance with the Stainless Works Long Tube Headers, specifically designed for the 2003 2011 Crown Victoria and Grand Marquis models equipped with 4. 6L engines. Crafted from premium stainless steel, these headers feature large 1 5 8 inch primaries to maximize exhaust gas velocity and improve horsepower and torque across the RPM range. Equipped with 3 inch H Flow catalytic converters, this setup not only

Experience unmatched exhaust flow and performance with the Stainless Works Long Tube Headers, specifically designed for the 2003-2011 Crown Victoria and Grand Marquis models equipped with 4.6L engines. Crafted from premium stainless steel, these headers feature large 1-5/8 inch primaries to maximize exhaust gas velocity and improve horsepower and torque across the RPM range.

Equipped with 3 inch H-Flow catalytic converters, this setup not only enhances power but also helps maintain emissions compliance. The design ensures smoother exhaust pulses, reducing backpressure and promoting a more efficient engine breath. Ideal for enthusiasts aiming to boost their vehicle's performance and sound with a reliable, long-lasting component.

These headers are precision-engineered to perfectly fit the factory exhaust layout, making installation straightforward for professionals and dedicated DIYers alike. Backed by Stainless Works' reputation for quality and durability, they offer excellent resistance to corrosion and heat, ensuring your investment lasts season after season.

Enhance your Crown Victoria or Grand Marquis with these high-performance long tube headers, designed to unlock your engine's full potential while delivering an aggressive exhaust note that truly stands out.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 71728115711

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Alan 77
Alexandria, US
★★★★★ 5
Works well
Style: Full Synthetic High Mileage, Size: 5 qt (Pack of 1), Configuration: 10W-30
I really like Valvaline oil for my vehicle, have for years
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Reviewed in the United States on May 30, 2026
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Howard
Port Orchard, US
★★★★★ 5
There’s oil in those yarn Hills!
Style: Full Synthetic High Mileage, Size: 1 qt (Pack of 1), Configuration: 5W-20
It’s great oil at a fair price. The shipping was expeditious and glad it was.
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Reviewed in the United States on May 22, 2026
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Robert
Houston, US
★★★★★ 5
Great value, cheaper than local.
Style: Full Synthetic High Mileage, Size: 5 qt (Pack of 1), Configuration: 0W-20
Good value, fast shipping, Valvoline quality.
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Reviewed in the United States on May 16, 2026
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Chris Brownell
Alexandria, US
★★★★★ 4
Good buy
Style: Full Synthetic High Mileage, Size: 5 qt (Pack of 1), Configuration: 5W-20
Run of the mill oil but for a great price
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Reviewed in the United States on March 27, 2026
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Jim
Draper, US
★★★★★ 5
The Excellence of Motion Preserved
Style: Full Synthetic High Mileage, Size: 1 qt (Pack of 1), Configuration: 5W-30
In the pursuit of the ideal, where reason governs and the forms of all things aspire to perfection, the Valvoline Full Synthetic High Mileage with MaxLife Technology 5W-30 Motor Oil presents itself as a manifestation of virtue within the mechanical realm. It is not merely oil, but a substance designed with foresight, sustaining the engine as the soul sustains the body. The viscosity is measured, neither excessive nor deficient, allowing parts to move in harmonious accord, reducing friction and preserving integrity. One observes that engines treated with this oil respond with steadiness and endurance, as if guided by a rational principle, minimizing wear and extending life in a manner that reflects the pursuit of the Good. I grant it five stars, for it exemplifies a balance between strength and refinement, a practical embodiment of foresight, wisdom, and care—ensuring that motion, that vital energy, continues undisturbed, much as a well-ordered soul achieves its fullest expression through the contemplation of virtue.
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Reviewed in the United States on December 13, 2025

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