2021-2025
2015-2020
2009-2014
2004-2008
1997-2003
Installation Time
(approx) 2 Hours
Difficulty Level:
Light to Moderate mechanical skill required.
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Flowtech 1-5/8-Inch Shorty Headers; Ceramic (04-08 5.4L F-150)Find parts that fit my vehicle
Item T556105
$602.06
10 Reviews
On Sale
-10% $602.06 kit Was $668.95
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Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- Excellent Increase in Horsepower and Torque
- Improve Exhaust Sound
- Short Tube Header Design
- Retains Factory Catalytic Converters and Mid-Pipe
- Feature 1.62-Inch Primary Tubes with 2.50-Inch Collector
- High-Flow Mandrel-Bent Tubing
- Cold-Rolled Mild Steel Construction
- Heat-Resistant, Thermal Barrier Ceramic Coating
- Street-Legal Design
- CARB Certification E.O. Number D-115-19
- Require Calibration for Operation
- Fits All 2004-2008 5.4L Ford F-150 Models
| Brand | Flowtech |
| Headers Type | Shorty Headers |
| Header Primary Size | 1.50-1.75 Inch |
| Header Collector Size | 2.50 Inch |
| Header Finish | Raw |
Description
Superb Horsepower and Torque. Enjoy your Ford F-150’s full potential with these Flowtech 1-5/8-Inch Shorty Headers; Raw. They feature an unrestricted design that allows for superb exhaust flow, increasing your truck’s power and torque. With these headers, pushing your truck harder in aggressive driving conditions is remarkably easy.
Remarkable Exhaust Tone. These Flowtech Shorty Headers are equipped with a 1.62-inch diameter primary tube that is designed for maximum exhaust flow. This allows for a faster and smoother exhaust which results in an aggressive exhaust sound each time you step on the gas.
Uses OE Catalytic Converters. These Shorty Headers are designed to reuse the OE exhaust components of your truck, including the mid-pipe and catalytic converters. This keeps your truck’s street-legal status so you can drive anywhere worry-free.
Highly Durable Construction. The industrial-grade construction of these headers guarantees superb performance that you can count on for years. They are manufactured using cold-rolled mild steel for unrelenting durability. They are also mandrel-bent for remarkable smoothness and consistent tubing diameter. Finally, these headers’ flanges are TIG-welded and machined for leak-free performance.
Heat-Resistant Ceramic Coating. These Headers are coated with a high-quality, silver metallic ceramic thermal barrier coating. This ensures remarkable resistance to heat and corrosion for longer-lasting performance.
Require Calibration. Installing these Shorty Headers custom calibration for operation. This will let you enjoy the full range of power that these headers are designed to deliver.
CARB-Approved Design. To ensure satisfaction, these Shorty Headers are 50-state smog legal under CARB E.O. number D-115-19. As such, they may be installed on pollution-controlled vehicles.
Application. These Flowtech 1-5/8-Inch Shorty Headers; Ceramic are specifically designed for use on all 2004-2008 5.4L Ford F-150 models.
Fitment:
DetailsFlowtech 91673-1FLT
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (2) Shorty Headers
- (2) Sets of Aluminum Gaskets
- Installation Hardware
4.5
Customer Reviews (10)
Reviews of Flowtech Exhaust products have an average rating of 4.4 out of 5
Questions & Answers
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Will It Fit My F-150
- 5.4L V8 - 04, 05, 06, 07, 08
