Flowmaster American Thunder Dual Exhaust System - 1998 Ford Mustang, GT/Cobra 4.6L 56-1421 6 AN Female to 5/16

6 AN Female to 5/16 in Tubing

Developed by Rad Rides by Troy

1966-1972 Chevrolet Caprice

and air cleaners

Proper installation is the responsibility of the installer

Flowmaster American Thunder Dual Exhaust System - 1998 Ford Mustang, GT/Cobra 4.6L 56-1421 6 AN Female to 5/16For 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,