Flowmaster American Thunder Cat-Back Exhaust System - 3 in Diameter - Single Side Exit - GM Fullsize Truck 1996-99 Proform Parts 1967-1978 Pontiac Catalina

1967-1978 Pontiac Catalina

This pan requires our 15-651 3/4" Dia

Detroit Truetrac's proven helical gear design eliminates the need for wearable parts

power valve channel restrictors & idle feed restrictors)

Specially Designed Resonators

Flowmaster American Thunder Cat-Back Exhaust System - 3 in Diameter - Single Side Exit - GM Fullsize Truck 1996-99 Proform Parts 1967-1978 Pontiac CatalinaFor the person who wants a subtle custom appearance with all the benefits that a Flowmaster Cat back exhaust system provides. S. O. S. (Single out side) systems are the perfect choice. American Thunder systems delivers 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, power and mileage. Designed for