Flowmaster American Thunder Dual Exhaust System - 1964-72 El Camino/GMC Sprint V8 Nomex Underwear Bottom Oldsmobile Rocket Block

Oldsmobile Rocket Block

(1) AN-08 to (2) AN-08 Male Flare Y-Block

100% Biodegradable

1988-1990 Chevrolet C1500

B&M Quailty

Flowmaster American Thunder Dual Exhaust System - 1964-72 El Camino/GMC Sprint V8 Nomex Underwear Bottom Oldsmobile Rocket BlockFor 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