Flowmaster 68-74 Nova American Thunder Header-Back System 409S – Dual Rear Exit, 817158

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

Connects after factory catalytic converter

Made in the USA

Premium Flowmaster quality

WARNING: This product can expose you to chemicals, which is known to the State of California to Cause Cancer, Birth Defects, And Other Reproductive Harm.

Specifications for Flowmaster 68-74 Nova American Thunder Header-Back System 409S – Dual Rear Exit

Vehicle Fitement for Flowmaster 68-74 Nova American Thunder Header-Back System 409S – Dual Rear Exit:

Product Documents

Installation Instructions Document

Warranty Document

Certificate of Origin Document