817560 - Flowmaster Outlaw Cat-back Exhaust System - default Image
817560 - Flowmaster Outlaw Cat-back Exhaust System - additional Image
817560 - Flowmaster Outlaw Cat-back Exhaust System - additional Image

Flowmaster Outlaw Cat-back Exhaust System

Fits 2011-2012 Ford Mustang, GT 5.0L, does Not Fit GT500.

PART# 817560

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Fits 2011-2012 Ford Mustang, GT 5.0L. Does Not Fit GT500.


Flowmaster® proudly introduces our newest cat-back exhaust system for 2011-2012 Mustang GT with the 5.0L engine. Designed for the hard core enthusiast, the Outlaw Series mufflers deliver a very aggressive exterior tone, along with an aggressive interior sound as well. The system features dual 3.00-inch mandrel-bent stainless steel tubing, our exclusive Scavenger Series® X-pipe for maximum power and a unique deep tone and includes a pair of our race-proven Outlaw® mufflers. The large 3.00-inch mandrel-bent tailpipes use the factory hanger locations are finished off with 4.00-inch polished 304 stainless steel tips. Includes all necessary parts, hardware and detailed instructions for an easy installation you can do at home. Covered by our Lifetime Limited Warranty.


  • Large 3.00-inch Mandrel-bent Tubing
  • Uses the Factory Hanger Locations
  • Dyno Proven Performance Gains
  • Race-proven Outlaw Mufflers
  • Stainless Steel Construction
  • Lifetime Limited Warranty
  • Super Aggressive Sound


California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Emission Code5
Exhaust SeriesOutlaw
Exit PositionDual Rear Exit
Heat ShieldNo
Inlet Diameter (in)3
MaterialStainless Steel
Muffler Part NumberKit Only
Muffler Quantity2
Muffler SeriesOutlaw Delta Force
Outlet Diameter (in)3
Product TypeExhaust Systems / Kits
Single DualDual
Sound LevelAggressive Sound
System TypeCat-back System
Tip Diameter (in)4
Tip Quantity2
Tubing Diameter (in)3
Part Number817560


This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Tech Resources

Fits 2011-2012 Ford Mustang, GT 5.0L. Does Not Fit GT500.



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