Flowmaster American Thunder Dual Exhaust System - 1964-72 El Camino/GMC Sprint V8 SR91152PUO-5 Reverse stitched for added comfort

Reverse stitched for added comfort

Reduces heat related pump failure

Used by Joe Gibbs Racing in every rear end differential

Threaded Aluminum

1972-1984 Oldsmobile 98

Flowmaster American Thunder Dual Exhaust System - 1964-72 El Camino/GMC Sprint V8 SR91152PUO-5 Reverse stitched for added comfortFor the person who is looking for a complete header 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