Flowmaster · New
Flowmaster 15-23 Mustang BASE Outlaw SS Axle-Back Exhaust System
MPN 817713 · Store SKU flo817713
Supplier stock checked 11/8/2026, 4:37:40 AM UTC. Adding a part does not reserve it.
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Product details
This Flowmaster® Outlaw axle-back exhaust system is specifically designed for 2015-2023 Ford Mustang coupes or convertibles with 2.3L Ecoboost or 3.7L engines. These systems feature race proven Outlaw® mufflers for a very aggressive exterior sound level with a moderate interior sound level. Features include 2.25-inch connections for an easy fit to the stock mid pipe then the inlets quickly expand to full 3.00-inch mandrel-bent inlet tubing leading into a pair of the race proven Outlaw mufflers for maximum performance and sound. The system is supported from the factory hanger locations for an easy and hassle free installation that can be done at home and is finished off with large 4.00-inch highly polished stainless steel tips for that performance look and sound that you've come to expect from Flowmaster. Covered by our Lifetime Limited Warranty. Note: Fits coupes and convertibles Fits 2015-2023 Ford Mustang with the 2.3L Ecoboost or 3.7L engine. - Aggressive sound Flowmaster Outlaw Axle-back Exhaust System
Manufacturer fitment & guides
Check 817713 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y
