Flowmaster American Thunder Single Exhaust System - 1967-74 Camaro/Firebird/1968-74 Nova V8 30300080 Our goal with the changes

Our goal with the changes in the Highway 22 Plus is to preserve the same feel as the original

This is common on circle track 23 ° high-port

1962-1965 Chevrolet C80

these XD-A pushrods can be adjusted from 8

Flowmaster American Thunder Single Exhaust System - 1967-74 Camaro/Firebird/1968-74 Nova V8 30300080 Our goal with the changesFor 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