Flowmaster · New
Flowmaster 05-10 Mustang GT Outlaw SS Cat-Back Exhaust System
MPN 817515 · Store SKU flo817515
Supplier stock checked 11/8/2026, 4:51:40 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
This Flowmaster® Outlaw® Cat-back exhaust system is designed for 2005-2010 Ford Mustang GT 4.6L, and GT500 with 5.4L engine and is perfect for the person looking for a deep aggressive sound level both inside and outside the car. This bolt-on emissions-legal system features 2.50-inch mandrel-bent stainless steel tubing leading into a pair of our race-proven Outlaw Series mufflers with large 3.00-inch outlets for maximum performance. The system uses the factory hanger locations for easy installation and is finished off with a pair of large 4.00-inch polished stainless steel tips embossed with the Flowmaster logo. This exhaust system fits both coupes and convertibles and is covered by our Lifetime Limited Warranty. Includes all necessary parts, hardware and easy to follow instructions for an installation you can do at home. Note: Fits coupes and convertibles. 2005-2010 Ford Mustang GT 4.6L or GT500 with 5.4L Engine. - Aggressive sound Flowmaster Outlaw Cat-back Exhaust System
Manufacturer fitment & guides
Check 817515 against the manufacturer’s application information below.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- Emissions acknowledgement required before purchase.
- California Proposition 65: Y
