Installation Time
(approx) 1 Hour
Difficulty Level:
Light to Moderate mechanical skill required.
Installation Guides
No guide available for this part yet.
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Flowmaster Outlaw Direct-Fit Muffler (21-26 3.5L EcoBoost F-150 w/ Factory Dual Exhaust, Excluding Raptor)Find parts that fit my vehicle
Item T599616-35
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-10% $414.86 kit Was $460.95
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Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- Large 3.0-Inch Mandrel Bent Pipes For Superior Flow And Power
- Outlaw Series Muffler Offers Race Proven Performance
- Powerful Exhaust Note With An Aggressive Sound Level That’s A Perfect Balance Of Sound And Power
- Max Power Gains Of 16 Hp And 21 Lb-Ft At The Rear Wheels
- 409 Stainless Steel Construction For Extra Durability
- Connects Directly To Factory Dual Tailpipes For A Simple Installation
- Lifetime Limited Warranty
- Fits 21-26 2.7L, 3.5L, and 5.0L F-150 with Factory Dual Exhaust, Excluding PowerBoost Hybrid and Models with OEM Active Exhaust
| Brand | Flowmaster |
| Muffler Inlet Size | 3.00 Inch |
| Muffler Installation Type | Clamp-On Muffler |
| Muffler Type | Chambered Muffler |
Description
Direct-Fit Performance Exhaust. The Flowmaster Outlaw Direct-Fit Muffler enhances the exhaust system by delivering a more aggressive sound and increased horsepower and torque. Designed for seamless integration with existing factory dual tailpipes, this muffler improves performance while maintaining a balanced and powerful exhaust tone that enthusiasts seek.
Construction and Appearance. Crafted entirely from durable 409 stainless steel, this muffler features large 3.00-inch mandrel bent piping for optimum exhaust flow. It is coated with a high-temperature black paint finish to provide a sleek look while resisting heat and corrosion for long-lasting durability.
Installation. Installation is straightforward with a direct-fit design that uses factory hangers and existing tailpipes, requiring no cutting or drilling. The package includes all necessary hardware and instructions for a hassle-free home installation.
Warranty. Backed by a lifetime limited warranty, ensuring reliable performance and quality over time.
Application. Designed to fit 2021-2026 Ford F-150 trucks with 2.7L, 3.5L, and 5.0L engines featuring factory dual exhaust. This muffler is not compatible with PowerBoost hybrid models or vehicles equipped with OEM active exhaust systems.
Flowmaster 818171
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) Machine Sleeves
- Mounting Hardware
4.9
Customer Reviews (15)
Questions & Answers
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Will It Fit My F-150
- 3.5L V6 EcoBoost - 21, 22, 23, 24, 25, 26
- 3.5L V6 EcoBoost Limited - 23
