1999-2004 Ford F-150 Lightning 5.4L Header with Downpipe Stainless Steel
1999-2004 Ford F-150 Lightning 5.4L Header with Downpipe Stainless Steel
Stainless steel header and downpipe assembly designed for the 5.4L Lightning engine. Built from corrosion-resistant stainless material to handle high heat and extend component life. Flows exhaust gases more efficiently than restrictive factory routing.
Key Features
- Stainless Steel Material - Resists rust and thermal degradation under sustained high-temperature operation.
- Header and Downpipe Integration - Single assembly eliminates potential leak points between separate components.
- 5.4L Engine Specific - Engineered for proper fitment and flow characteristics on this displacement.
Specs
- Material: Stainless Steel
- Configuration: Header with integrated downpipe
- Engine: 5.4L
- Condition: New
Whats Included
- Header and downpipe assembly
Frequently Asked Questions
Will this bolt directly to the factory exhaust manifold location?
This header is designed to replace the factory cast manifold at the cylinder head. Verify bolt hole alignment and O2 sensor bung location before final installation—test-fit the assembly on the engine first.
Do I need to prep or coat the stainless steel before installation?
Stainless steel doesn't require primer or paint. Install it as-is. High-temperature exhaust gases will naturally patina the outer surface over time.
What's the warranty on this header?
Return or warranty details aren't specified in the product data—reach out to ModSupply directly with your order number for coverage information.
Products received may vary slightly from images due to manufacturing tolerances or supply chain variables.
International Orders (Outside USA)
Please be aware your country may charge import fees of up to 20% in some cases. If delivery is refused, return shipping costs us 4x the original shipping fee, so we will charge a 50% restocking fee. By purchasing you agree to these terms.
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