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Home / Exhaust / Axle Back / Flowmaster 15-23 Mustang BASE Outlaw SS Axle-Back Exhaust System
Flowmaster 15-23 Mustang BASE Outlaw SS Axle-Back Exhaust System
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Flowmaster

Flowmaster 15-23 Mustang BASE Outlaw SS Axle-Back Exhaust System

PART 817713CATEGORY Axle Back
$659.95
MSRP $742.95You save $83.00
$659.95
1
LISTED BY THE MANUFACTURER FOR

“Flowmaster 15-23 Mustang BASE Outlaw SS Axle-Back Exhaust System”

“...er® Outlaw axle-back exhaust system is specifically designed for 2015-2023 Ford Mustang coupes or convertibles with 2.3L Ecoboost or 3.7L engines...”

Confirm fitment with the part number before ordering.

Product information

Manufacturer information. Check the part number and installation requirements for your vehicle.

Supplier details checked 2026-09-23 · Test catalog

Some supplier details are unavailable for this product.

Product description

Fits 2015-2023 Ford Mustang with the 2.3L Ecoboost or 3.7L engine. - Aggressive sound

Flowmaster Outlaw Axle-back Exhaust System

Features

Large 4.00-inch Polished Stainless Steel Tips

Aggressive Race Proven Outlaw Mufflers

Dyno-tuned for Maximum Performance

Uses the Factory Hanger Locations

Full Stainless Steel Construction

Lifetime Limited Warranty

Mandrel-bent Tubing

Easy Installation

Manufacturer notes

2015-2023 Ford Mustang with 2.3L Ecoboost or 3.7L engines. Fits coupes and convertibles

Supplier category
Exhaust, Mufflers & Tips
Supplier subcategory
Axle Back
UPC / barcode
700042032037
Units per product
1
Supplier Proposition 65 status
Y
Supplier EPA status
N/A
Air freight prohibited
No
Not CARB approved
No
CARB acknowledgement required
No
Freight delivery required
No
Powersports product
No

Manuals and documents

More manufacturer information

Other product descriptions

Flowmaster 15-23 Mustang BASE Outlaw SS Axle-Back Exhaust System

1523 MUSTANG BASE AB OTL 409S

SYS 15-23 MUSTANG BA

About the manufacturer

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

Additional manufacturer information

SYS 15-23 MU

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Flowmaster 15-23 Mustang BASE Outlaw SS Axle-Back Exhaust System | Q40 Motorsports