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 Outlaw Dual Exhaust System; Side/Rear Exit (09-13 5.3L Sierra 1500)Find parts that fit my vehicle
Item S503509
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$1,080.86
330 Reviews
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-10% $1,080.86 kit Was $1,200.95
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$299.00
Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- T-304 Stainless Steel
- Boost in Throttle Response, Horsepower, And Fuel Economy
- Made in the U.S.A.
- 409S Stainless Steel Mufflers
- Lack Ceramic Coated 4-inch Double Wall Stainless Steel Tips
- Limited Lifetime Warranty
- Fits the 2009-2013 5.3L GMC Sierra 1500 Crew and Double Cab Models
| Brand | Flowmaster |
| Exhaust System Type | Cat-Back System |
| Exhaust Tip Finish | Black, Black Chrome |
| Exhaust Tubing Diameter | 3.00 Inch |
| Exhaust Material | Stainless Steel |
| Exhaust Tip Outlet Style | Dual |
| Exhaust Exit Location | Both Sides or Rear - After Tire |
| Exhaust Loudness | Aggressive |
Description
Genius by Flowmaster. The Flowmaster Outlaw Cat-Back Exhaust - Split Side/Rear Exit equips your 2009-13 5.3L Sierra 1500 with a throaty, aggressive sound with an immediate boost in throttle response, horsepower, and fuel economy. It is proudly made in the U.S.A.
Constructed to Perform. This bolt-on cat-back exhaust is comprised of 409S stainless steel mufflers and black ceramic coated 4-inch double wall stainless steel tips for extra durability. It fits comfortably on Crew Cab and Double Cab models.
Warranty. Flowmaster provides a limited lifetime warranty, which covers the product from defects in materials and workmanship. To learn more about what the warranty covers, please visit the manufacturer’s website.
Installation. Installing this product takes about 2 hours with a medium level of complexity. All of the necessary hangers and hardware are included with detailed, step-by-step instructions. Users can also have it serviced using a professional installer or auto center.
Application. The Flowmaster Outlaw Cat-Back Exhaust - Split Side/Rear Exit fits the 2009-2013 5.3L GMC Sierra 1500.
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Fitment:
- 2009 GMC Sierra 1500
- 2010 GMC Sierra 1500
- 2011 GMC Sierra 1500
- 2012 GMC Sierra 1500
- 2013 GMC Sierra 1500
Flowmaster 817688
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) Front Pipe
- (1) Inlet Pipe
- (1) Muffler
- (1) Right Tailpipe
- (1) Left Tailpipe, Front Section
- (1) Left Tailpipe, Rear Section
- (2) Rear Exit Pipe (R/L)
- (2) Side Exit Pipe (R/L)
- (2) Stainless Tip
- (1) Parts Kit
Tech Guides:
4.7
Customer Reviews (330)
Questions & Answers
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Will It Fit My Sierra 1500
- 5.3L V8 - 09, 10, 11, 12, 13
Designed for Extended and Crew Cab Models.
