If you are looking for aggressive exhaust tone inside and outside of your S550, thenFlowmaster's Outlaw Cat-back exhaust system for the S550 Mustang GT is exactly what you need. This system has all of the performance benefits that you would expect from Flowmaster. This easy to bolt-on emissions-legal system for the 5.0L V8 features a pair of 409S stainless steel Outlaw Series mufflers with 3.00 inch stainless steel mandrel bent pipes and scavenger x-pipe. The system finishes off with 4.00 inch carbon fiber tips. This system does not fit models with the Active Performance Exhaust option. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, this system includes all necessary parts and hardware for installation.
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