Flowmaster
Flowmaster 2015-2017 Mustang GT 5.0L Outlaw SS Axle-Back Exhaust System - #817826
Flowmaster 2015-2017 Mustang GT 5.0L Outlaw SS Axle-Back Exhaust System - #817826
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This Flowmaster® Outlaw Axle-back exhaust system is custom designed for all 2015-2017 Ford Mustang GT 5.0L coupes and convertibles. The system features all stainless steel mandrel-bent 3.00-inch tubing leading into a pair of race-proven Outlaw® series mufflers, for an aggressive exterior sound with a noticeable interior sound level. The system finishes with a pair of large 4.00-inch black ceramic coated tips for an aggressive look that goes hand in hand with the attitude projected by the Outlaw mufflers. This system includes all the necessary parts, hardware, and instructions needed for an easy installation and is covered by our Lifetime Limited Warranty.
- Aggressive Race Proven Outlaw Mufflers
- Dyno-tuned for Maximum Performance
- Uses the Factory Hanger Locations
- Full Stainless Steel Construction
- Lifetime Limited Warranty
- Quick & Easy Installation
Vehicle Fitment
- 2015-2017 Ford Mustang
Please verify exact fitment for your trim and engine before ordering.
🚚 Vendor Direct Shipment: This item is not stocked in our warehouse and ships directly from the manufacturer. Please allow additional handling time before dispatch.
Manufacturer Part Number: 817826
Images are for illustrative purposes only. Actual product may vary.
⚠ WARNING (California Proposition 65): This product can expose you to chemicals which are known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.
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Manufacturer's Warranty — Flowmaster
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Manufacturer's Warranty — Flowmaster
Flowmaster warranty is tiered by material and product line. Lifetime Limited Warranty — stainless steel mufflers (FlowFX series excepted), all stainless steel exhaust systems (FlowFX included), stainless steel pipes, air intake kits and oiled-type filters (cleaning kits excepted), and other stainless steel exhaust accessories (exhaust tips and racing products excepted); this runs for the life of the original vehicle the part was installed on. Three (3) years — aluminized steel mufflers, exhaust systems and pipes, all exhaust tips, other non-race exhaust accessories, and commercial-vehicle applications of aluminized or stainless products. Two (2) years — Delta Force dry air intake filter elements. One (1) year — FlowFX series mufflers, Elite Series headers, and electronic components such as Delta Boost modules. Catalytic converters sold under the Flowmaster brand are excluded from this warranty. Coverage runs from the date of original purchase, to the original purchaser only, and only while the part remains on the vehicle it was originally installed on. Header coverage does not extend to damage caused by exhaust insulating wrap and is void if the header was fitted to a new or rebuilt engine during the initial break-in period. Sound-absorbing material inside “straight-through” mufflers degrades over time; Flowmaster treats that as normal wear, not a material defect. Also excluded: interior and exterior sound levels, cosmetic issues such as coatings and material discoloration, installation on a racing vehicle, improper installation or installation contrary to Flowmaster instructions, alteration, misuse, repair, accident, collision, undercarriage road impact or debris, and willful or negligent acts. To claim, the original purchaser returns the product either to the original retailer or directly to Flowmaster — a Returned Material Authorization (RMA) number must be obtained from Flowmaster first if returning to them — with proof of purchase showing place, price, product and date. Flowmaster's remedy is exchange for the same part number or refund of the purchase price at its option; installation, labor, towing and shipping costs are not covered.
Warranty terms are set by the manufacturer and may change. Full details and claims are handled directly by Flowmaster. Contact us if you need help with a warranty claim.

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