A/T Exhaust System - 64-72 El Camino

The Flowmaster American Thunder A/T Exhaust System for 1964–1972 El Camino is a cat-back dual exhaust setup engineered to deliver improved flow and authentic muscle-car sound for classic GM A-Body platforms. This complete kit replaces the stock exhaust from the catalytic converter back, featuring 2.5-inch diameter mandrel-bent tubing and polished 3-inch side exit tips that frame the rear end with both visual impact and performance character.

The aluminized steel construction resists corrosion while keeping weight manageable at 83.53 pounds for the complete assembly. Dual side exit design maximizes ground clearance on lowered or modified trucks while distributing exhaust gas flow evenly across both outlets, reducing backpressure compared to single-exit configurations. The 2.5-inch diameter tubing maintains velocity through the system, preserving scavenging efficiency that supports responsive throttle behavior and improved engine breathing on stock or mildly modified powerplants.

This exhaust is ideal for El Camino owners seeking period-correct aesthetics with modern construction quality. The kit fits 1964–1972 GM A-Body vehicles, making it compatible across the full generation of El Caminos from this era. Installation involves bolt-on connections to existing flanges, eliminating the need for welding. The polished stainless tips add chrome-like visual appeal that requires only occasional cleaning to maintain finish, while the aluminized steel body underneath provides years of corrosion resistance in various climates.