Flowmaster · New
Flowmaster 11-14 Ford Mustang V6 FlowFX Axle-Back Exhaust System
MPN 717877 · Store SKU flo717877
Supplier stock checked 11/8/2026, 9:34:33 AM UTC. Adding a part does not reserve it.
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Product details
Flowmaster introduces our Flow FX stainless steel axle-back exhaust system for the 2011-2014 Ford Mustang with the 3.7-liter engine. This system uses a Flow FX series muffler for a moderate to mild sound level and increased performance. Mandrel bent 2.5-inch 409 stainless steel tubing allows for maximum exhaust flow and durability. The system uses larger 4.00-inch black ceramic-coated stainless steel tips for a custom look. Max dyno gains of 7 hp and 6 lb-ft at the rear wheels over stock. All of the necessary hardware is included, and factory-mounting locations are used for an easy installation. Backed by Flowmaster's Lifetime Limited Warranty. Fits 2011-2014 Ford Mustang 3.7-liter, Flow FX Axle-Back 2.5-inch Stainless Steel Exhaust System, 4.0-inch Black Ceramic Tips, Dual Out Rear Exit Flowmaster Flow FX Axle-Back Exhaust System
Manufacturer fitment & guides
Check 717877 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y