Overview
Improve the sound and performance of your 2003-04 Mercury Marauder with premium long tube headers from Stainless Works.
Designed with 1-5/8" CNC mandrel-bent primary tubes, these headers improve exhaust flow while increasing horsepower and mid-range torque.
Each system features 3" collectors with integrated merge spikes and high-flow catalytic converters for optimized scavenging and smoother exhaust flow.
Built from corrosion-resistant 304 stainless steel and TIG welded in Streetsboro, Ohio — engineered for long-term durability and performance.
Why Stainless Works
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American-made from raw material to finished product
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TIG welded by skilled craftsmen for strength and beauty
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Lifetime warranty on material and craftsmanship
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Direct bolt-on fit for 2003-04 Mercury Marauder
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Pairs perfectly with Stainless Works catback for a full system upgrade
Key Features
Long Tube Design
Improves exhaust scavenging for more power and torque.
1-5/8" Primary Tubes
Optimized sizing for improved horsepower and mid-range torque.
Integrated Merge Spikes
Enhances exhaust scavenging and improves overall flow efficiency.
High-Flow Cats
EPA compliance with improved flow.
Mandrel Bent Tubing
Smooth airflow with zero restriction bends.
TIG Welded Construction
Precision welds for maximum durability.
Specifications
| Vehicle Fitment | 2003-04 Mercury Marauder |
| Primary Tube Size | 1-5/8" |
| Collector Size | 3" |
| Catalytic Converters | EPA Compliant High-Flow |
| Material | 304 Stainless Steel |
| Welding | TIG Welded |
| Connection | Fits Stainless Works and most Aftermarket Exhausts |
| Warranty | Lifetime |
| Origin | Made in USA — Streetsboro, Ohio |
See It In Action
Sound Comparison and Features — 2003-04 Mercury Marauder Long Tube Header Kit
What's In The Box
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Driver Side Header x1
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Passenger Side Header x1
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Cat Converters x1
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Lead Pipes x2
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Clamps x4
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O2 Extensions x2
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Header Bolt Kit x16 Pieces
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RTV Tube x1
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Installation Instructions
Frequently Asked Questions
Will these headers fit my 2003-04 Mercury Marauder?
Yes. These headers are designed specifically for the 2003-04 Mercury Marauder and provide a direct bolt-on installation.
Do these headers include catalytic converters?
Yes. This kit includes EPA compliant high-flow catalytic converters designed to improve exhaust flow and performance.
What material are these headers made from?
These headers are built entirely from corrosion-resistant 304 stainless steel and fully TIG welded for long-term durability.
Can I pair these with a Stainless Works exhaust system?
Absolutely. These headers pair perfectly with Stainless Works catback exhaust systems for a complete performance upgrade.
Where are these headers manufactured?
All Stainless Works headers are proudly manufactured in Streetsboro, Ohio using premium American-made materials and craftsmanship.
Questions? Call us at 800-878-3635 | Mon–Fri 7:30am–4:30pm EST
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