2024-2025
2015-2023
2010-2014
2005-2009
1999-2004
1994-1998
1979-1993
Installation Time
(approx) 1 Hour
Difficulty Level:
Light to Moderate mechanical skill required.
Installation Guides
- Customer Submitted:
- How to Install MAC Boom Tube Axle-Back Exhaust on your 2005-2010 GT and GT500
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Find Axle-Back Exhaust for your Mustang
Flowmaster Outlaw Axle-Back Exhaust System (05-10 Mustang GT, GT500)Find parts that fit my vehicle
Item 18423
$539.96
500+ Reviews
59 Answers
On Sale
-10% $539.96 Was $599.95
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$229.00
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Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- Super Aggressive Flowmaster Outlaw Sound
- Durable 409 Stainless Steel Construction
- 2.5" Mandrel-Bent Tubing
- 4" Polished Stainless Steel Tips
- Includes Two Flowmaster Outlaw Mufflers
- Fits 2005-2010 GT, Bullitt, and Shelby GT500
| Brand | Flowmaster |
| Exhaust System Type | Axle-Back System |
| Exhaust System Tip Finish | Chrome, Polished |
| Exhaust Loudness | Aggressive |
Description
Super Aggressive Flowmaster Sound. Give your Mustang that unmistakable Flowmaster sound with the Outlaw Series Axle-back exhaust system from AmericanMuscle. This system improves exhaust flow using Flowmaster's race-oriented style Outlaw mufflers for that super, aggressive exhaust note your high powered Pony deserves.
Quality Construction. Constructed from durable 2.5" 16 gauge 409 stainless steel tubing for it's corrosion resistant properties the Flowmaster Outlaw Axle-back features two race-oriented mufflers with massive 4.0" diameter polished stainless steel tips for impressive muscle car looks and sound. As an added bonus the tips are embossed with the "Flowmaster" logo for true custom styling.
Application. This Flowmaster Outlaw Series Axle-back exhaust system is designed to fit the 2005 to 2010 GT, Bullitt and the 2007-2010 Shelby GT500 Mustangs for both great looks and great sound.
Quality Construction. Constructed from durable 2.5" 16 gauge 409 stainless steel tubing for it's corrosion resistant properties the Flowmaster Outlaw Axle-back features two race-oriented mufflers with massive 4.0" diameter polished stainless steel tips for impressive muscle car looks and sound. As an added bonus the tips are embossed with the "Flowmaster" logo for true custom styling.
Application. This Flowmaster Outlaw Series Axle-back exhaust system is designed to fit the 2005 to 2010 GT, Bullitt and the 2007-2010 Shelby GT500 Mustangs for both great looks and great sound.
Technical Note. Americanmuscle recommends adding the 2005+ Mustang 304 Stainless Steel Exhaust Hanger Kit from the drop down option above, to provide more strength, stability and a cleaner installed appearance. If you have a 2007 Mustang you may need the kit for correct installation.
Fitment:
- 2005 Ford Mustang
- 2006 Ford Mustang
- 2007 Ford Mustang
- 2008 Ford Mustang
- 2009 Ford Mustang
- 2010 Ford Mustang
Flowmaster 817511
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) Muffler assemblies
- (2) Clamps
4.8
Customer Reviews (500+)
Questions & Answers (59)
Will It Fit My Mustang
- GT - 05, 06, 07, 08, 09, 10
- GT500 - 07, 08, 09, 10
