817588 The Flowmaster® American Thunder® Axle-back exhaust system for the 2013-2014 Ford Mustang GT is perfect for the person looking for an aggressive sound level outside of the car with a moderate interior tone at different rpms. 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, uses the factory hanger locations 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. Features: Large 4.00-inch Polished Stainless Steel Tips Dyno Tuned For Maximum Performance Large 3.00-inch Mandrel-bent Tubing Uses the Factory Hanger Locations Super 44 Performance Mufflers Stainless Steel Construction Quick and Easy Installation Lifetime Limited Warranty About Flowmaster Flowmaster® is a household name, and for good reason. They've built legendary exhaust systems and mufflers for decades, and now offer performance air intakes, catalytic converters, and headers to give your hot rod performance to match the iconic Flowmaster sound. SPECS 2WD/4WD RWD Brand Flowmaster Emission Code 5 Exhaust Series American Thunder Exit Position Dual Out Rear Heat Shield No Inlet Diameter (in) 2.75 Material 409 Stainless Steel Muffler Part Number Kit Only Muffler Quantity 2 Muffler Series Super 44 Series Outlet Diameter (in) 3 Product Type Exhaust System Single Dual Dual Sound Level Aggressive System Type Axle-back Tip Diameter (in) 4 Tip Quantity 2 Tubing Diameter (in) 3 UPC 700042027576 California Proposition 65 Chemical Name Chromium (hexavalent compounds) Nickel (Metallic) California Proposition 65 Required Yes