2019-2025
2014-2018
2007-2013
1999-2006
Installation Time
(approx) 2 Hours
Difficulty Level:
Light to Moderate mechanical skill required.
Installation Guides
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Flowmaster Force II Single Exhaust System; Side Exit (07-13 5.3L Sierra 1500)Find parts that fit my vehicle
Item S503522
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$737.96
27 Reviews
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-10% $737.96 kit Was $819.95
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$299.00
Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- Augments Throttle Response, Fuel Mileage, and Horsepower
- Improves Efficiency without Aggressive Noise
- Perfect for Vehicle Towing Applications
- Dyno Tuned for Maximum Performance
- Ensures Mild Exhaust Tone
- Heavy-Duty Stainless Steel Material
- Durable Mandrel Bent 16 Gauge Tubing
- Single Side Exit
- Inlet Diameter: 3”
- Tubing Diameter: 3”
- Tip Diameter: 3.5”
- Outlet Diameter: 3”
- Limited Lifetime Warranty
- Easy Fit Installation
- Made in America
- Fits All 2007-2013 5.3L GMC Sierra 1500 Models
| Brand | Flowmaster |
| Exhaust System Type | Cat-Back System |
| Exhaust Tip Finish | Chrome, Polished |
| Exhaust Tubing Diameter | 3.00 Inch |
| Exhaust Material | Stainless Steel |
| Exhaust Tip Outlet Style | Single |
| Exhaust Exit Location | Passenger Side - After Tire |
| Exhaust Loudness | Mild |
Description
Perfect for Towing. The Flowmaster Force II Cat-Back Exhaust – Single Side Exit is perfect for vehicle towing applications. It will augment throttle response, fuel mileage, and horsepower in your 5.3L GMC Sierra 1500. The exhaust improves efficiency without creating aggressive noise. There is a mild exhaust tone and is dyno tuned for maximum performance.
Single Side Exit. This exhaust is manufactured from heavy-duty stainless steel material. It features durable mandrel bent 16 gauge tubing and has a single side exit.
Specifications. The inlet diameter is 3 inches. The tubing diameter is 3 inches. The tip diameter measures 3.5 inches. The diameter of the outlet is 3 inches.
Limited Lifetime Warranty. Flowmaster Mufflers provides a limited lifetime warranty on this cat-back exhaust. Some exclusions apply, so check out the warranty information for details.
Easy Fit Installation. You can download a PDF installation guide on the manufacturer’s website. This exhaust was designed for an easy direct fit installation. You’ll receive all the hardware and components needed to complete the installation.
Application. The Flowmaster Force II Cat-Back Exhaust – Single Side Exit is designed to fit all 2007-2013 5.3L GMC Sierra 1500 models. The exhaust fits all wheelbases except for Extended Cabs with the Long Box for 2007-2008 Models. It fits Extended Cabs with the Standard Box and Crew Cabs with the Short Box for 2009-2013 Models. It is made in America.
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Fitment:
- 2007 GMC Sierra 1500
- 2008 GMC Sierra 1500
- 2009 GMC Sierra 1500
- 2010 GMC Sierra 1500
- 2011 GMC Sierra 1500
- 2012 GMC Sierra 1500
- 2013 GMC Sierra 1500
Flowmaster 817523
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) Mandrel Bent Pipe
- (1) Front Pipe
- (1) Exhaust Tip
- (2) Hangers
- (4) Clamps
- Installation Directions
Tech Guides:
4.7
Customer Reviews (27)
Questions & Answers
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Will It Fit My Sierra 1500
- 5.3L V8 - 07, 08, 09, 10, 11, 12, 13
Fits All Wheelbases except for Extended Cabs with the Long Box for 2007-2008 Models. Fits Extended Cabs with the Standard Box and Crew Cabs with the Short Box for 2009-2013 Models.
