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Header-Back System - Dual Rear Exit - American Thunder - Moderate/Aggressive
1964 to 1972 GM A-Body with a V8 engine.
For 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 response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation.
- Mandrel bent 16 gauge aluminized tubing
- Moderate to aggressive exterior exhaust tone
- Includes hangers and hardware for easy installation
- Made in the USA
- Premium Flowmaster quality
Dual Rear Exit
inlet diameter (inches)
muffler part number
Super 40 Series
outlet diameter (inches)
tubing diameter (inches)
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