Flowmaster 817799 American Thunder Axle-Back Kit 18-19 Mustang GT

Fits 2018-2021 Mustang GT 5.0L With Factory Active Performance Exhuast Valves 

Flowmaster's American Thunder Axle-back exhaust system for the 18-19 Ford Mustang GT is perfect for the person looking for a moderate to 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 DOR (Dual Out Rear) emissions-legal system for cars with the 5.0L engine features a pair of Outlaw Series mufflers and dual mandrel bent 3.00 inch tailpipes for maximum performance. The mufflers include functional exhaust valves to work with the OE actuator motors to select between sound levels.The system is built out of 409S stainless steel and utilizes Quad 4.00 inch polished stainless steel tips with the Flowmaster logo embossed in them. This system fits vehicles equipped with Active Performance Exhaust Option. The exhaust system is manufactured in the USA and is covered by Flowmaster's Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation. Note: This system fits hardtops and convertibles.

• Quad 4.00-inch Polished 304 Stainless Steel Tips
• For Vehicles With Active Performance Exhaust Option
• Aggressive Race-proven Outlaw Mufflers
• Dyno Tuned for Maximum Performance
• Uses the Factory Hanger Locations
• Full Stainless Steel Construction
• Straight-through Muffler Design
• Lifetime Limited Warranty
• Easy Installation

Installation Instructions (PDF)