Free shipping on eligible orders of $100 or more. Oversized and freight items excluded.

Shop parts / Flowmaster / New

Flowmaster 15-17 Mustang GT 5.0L American Thunder SS Axle-Back Exhaust System

Flowmaster · New

Flowmaster 15-17 Mustang GT 5.0L American Thunder SS Axle-Back Exhaust System

MPN 817749 · Store SKU flo817749

$1,068.95
CHECK AVAILABILITY0 in supplier warehouses. Ask JuiceBuilt about availability.

Supplier stock checked 11/8/2026, 3:55:06 AM UTC. Adding a part does not reserve it.

30-day returns for unopened, unused new parts

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

The Flowmaster® American Thunder® Axle-back exhaust system for the 2015-2017 Ford Mustang GT is perfect for the person looking for an aggressive sound level both inside and outside of the car, with all of the performance benefits that you would expect from Flowmaster. This bolt-on emissions-legal system is for cars with the 5.0L engine and features 3.00-inch mandrel-bent tubing flowing into a pair of Super 44™ Series performance mufflers with 3.00-inch tailpipes for maximum performance and a deep powerful sound. The system is constructed from 409 stainless steel and features large 4.00-inch polished stainless steel tips for a refined look. The system is covered by our Flowmaster Lifetime Limited Warranty and is designed for an easy fit and includes all necessary parts and hardware for installation. Note: This system fits coupes and convertibles. 2015-2017 Ford Mustang GT 5.0L Coupes & Convertibles. - Aggressive to moderate sound Flowmaster American Thunder Axle-back Exhaust System

Manufacturer fitment & guides

Check 817749 against the manufacturer’s application information below.

Part-specific notes

  • California Proposition 65: Y

Manufacturer documents

More from Flowmaster ↗See the JuiceBuilt workshop ↗

YOUR NEXT MOVE

Your cart.