Flowmaster · New
Flowmaster 13-14 Mustang GT Outlaw SS Cat-Back Exhaust System
MPN 817590 · Store SKU flo817590
Supplier stock checked 11/8/2026, 3:41:06 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
Introducing the Flowmaster Outlaw® Cat-back exhaust system for the 2013-2014 Ford Mustang GT with 5.0L engine. This system is perfect for the person looking for a deep powerful exterior sound while maintaining a moderate interior sound level with all of the performance benefits that you would expect from Flowmaster®. New features include dual 3.00-inch mandrel-bent stainless steel tubing flowing into a Scavenger Series® X-pipe for maximum performance and a deep unique muscle tone. The Scavenger Series X-pipe then flows into a pair of race-proven Outlaw® mufflers and out into the dual 3.00-inch mandrel-bent tailpipes. The tailpipes use the factory hanger locations and are finished off with large 4.00-inch polished stainless steel tips to complement the factory cutouts. Designed for an easy installation this system includes all necessary parts, hardware, and detailed instructions. Note: Fits Coupes and Convertibles. 2013-2014 Ford Mustang GT 5.0L Coupes & Convertibles. - Aggressive sound Flowmaster Outlaw Cat-back Exhaust System
Manufacturer fitment & guides
Check 817590 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
