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- American Thunder Header-Back Exhaust System
- 1964-66 Ford Mustang V8
- 2.25" Tubing, 2.25" Polished SS Tips
- Dual Rear Exit
- 50 Series Delta Flow Muffler
- Aluminized Steel
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 exterior exhaust tone
- Includes hangers and hardware for easy installation
- Header back system
- Made in the USA
- Premium Flowmaster quality
Experience An Exhaust System Tuned for Performance and Tone
If you need an exhaust system that has been dyno tuned to produce maximum performance, look no further than Flowmaster's American Thunder Exhaust Systems. This line, designed for passenger cars, produces a range of systems that offer moderate to aggressive exhaust notes. Available in axle, cat, and header-back configurations, Flowmaster has you covered. To ensure durability and ease of installation, these kits are made from 16-gauge mandrel bent tubing and includes the necessary hangers and hardware.

