2019-2025
2014-2018
2007-2013
1999-2006
Installation Time
(approx) 1 Hour
Difficulty Level:
Simple installation for anyone.
Installation Guides
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Flowmaster Outlaw Extreme Single Exhaust System; Turn Down (14-18 5.3L Sierra 1500)Find parts that fit my vehicle
Item S510689-53
Sierra 1500 Sales Techs:
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M-F 8:30A-11P, Sat-Sun 8:30A-9P
$363.56
172 Reviews
On Sale
-10% $363.56 kit Was $403.95
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Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- Produces a Deep and Aggressive Exhaust Sound
- Enhances Exhaust Flow for Increased Power and Torque
- Straight-Through Muffler Design
- Made From High-Strength, 409 Stainless Steel, 3-Inch Mandrel-Bent Tubing
- Comes in a Black Painted Finish
- Easy Installation With Minor Cutting
- Uses Factory Hangers
- Backed by a Limited Lifetime Warranty
- Made in the USA
- Fits All 2014-2018 5.3L GMC Sierra 1500 Models
| Brand | Flowmaster |
| Exhaust System Type | Cat-Back System |
| Exhaust Tip Finish | No Tips |
| Exhaust Tubing Diameter | 3.00 Inch |
| Exhaust Material | Stainless Steel |
| Exhaust Tip Outlet Style | No Tip |
| Exhaust Exit Location | Turn Down |
| Exhaust Loudness | Aggressive |
Description
Powerful Aggressive Note. Reinforce your Sierra’s powerful stance with an equally fierce exhaust sound by installing the Flowmaster Outlaw Extreme Turn-Down Single Exhaust System. The Outlaw muffler particularly delivers a race-oriented exhaust note.
Performance Boost. This Outlaw Extreme cat-back exhaust provides an efficiently powerful performance. It is specifically engineered using race-proven Outlaw Muffler Technology to maximize exhaust flow while minimizing temperature. In addition, Flowmaster uses cool shell technology in its internal design providing a significant reduction in exterior muffler temperature. As a result, improved exhaust performance is prolonged with more power and efficient fuel utilization.
Reliable Toughness. The Outlaw Exhaust System is made of premium-quality 409 stainless steel. This highly corrosion-resistant material is also reinforced with a black painted finish for extra durability. This construction ensures a long-lasting service life even with prolonged off-road use.
Simple Installation. Designed for easy installation, this Outlaw Extreme Single Exhaust System requires cutting the stock muffler. It will easily fit your truck’s factory mounting locations using the provided hanger keepers. The installation process completes with moderate mechanical skills required.
Application. The Flowmaster Outlaw Extreme Turn-Down Single Exhaust System is intended for use on all 2014-2018 5.3L GMC Sierra 1500 models.
Fitment:
- 2014 GMC Sierra 1500
- 2015 GMC Sierra 1500
- 2016 GMC Sierra 1500
- 2017 GMC Sierra 1500
- 2018 GMC Sierra 1500
Flowmaster 817916
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) Muffler
- (1) Band Clamp
- (2) Hanger Keepers
4.7
Customer Reviews (172)
Questions & Answers
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Will It Fit My Sierra 1500
- 5.3L V8 - 14, 15, 16, 17, 18
Designed for Double Cab and Crew Cab Models
