Flowmaster American Thunder Cat-Back Exhaust System - 2-1/2 in Diameter - Dual Rear Exit - Ford Modular - Ford Mustang 1994-97 Metric to AN Fittings Boost Timing Master

Boost Timing Master

1986-1995 Ford E-150 Econoline

Swap Shorty

12 Volt Button Switch

Flowmaster American Thunder Cat-Back Exhaust System - 2-1/2 in Diameter - Dual Rear Exit - Ford Modular - Ford Mustang 1994-97 Metric to AN Fittings Boost Timing MasterFor the person who is looking for a complete Cat Back dual exhaust system with an aggressive tone. With easy fit in mind, these systems are mandrel bent for maximum performance and include specially selected mufflers. American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response,