"American Thunder" Header Back Exhaust System.
Fits 1964 - 1972 GM A-Body Kit, 2.5" Tubing (Chevelle/El Camino/Malibu/Monte Carlo, LeMans/GTO, Cutlass/442, Gran Sport/GS/Skylark)
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.mufflers, stainless steel tips, and all necessary clamps and hangers.
2.5" Inlet/ 2.5" outlet
From Transmission X-Member Back
Super 40 Series Mufflers
Shipping from warehouses in the U.S. and Canada!
Performance Parts has over 20 warehouses in the U.S. and Canada so you can get your parts duty free! Call for availability.