Flowmaster 64-72 Chevrolet El Camino American Thunder Crossmember-Back Exhaust System

For the person who is looking for a complete Crossmember-Back dual exhaust system with a moderately aggressive tone for their 1964 to 1972 Chevrolet/GMC El Camino/Sprint with a V8 engine. With easy fit in mind, these systems are constructed from 2.50-inch mandrel-bent aluminized steel with a built in H-pipe to equalized the exhaust pressures, eliminates backrap on deceleration and makes maximum power. The system includes a pair of specially selected Super 50 Series mufflers for a deep powerful exterior sound with minimal interior tone and is suited for the enthusiast who wants their performance to be heard, just not inside the cab. The mandrel-bent tailpipes exit at an angle behind the rear wheels and are finished off with large 3.00-inch angle cut polished stainless tips for an aggressive look. 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. Fits 1964-1972 Chevrolet El Camino and GMC Sprint with V8 engine, 2.5" Aluminized pipes - Aggressive to moderate sound Fits 1964-1972 Chevrolet El Camino and GMC Sprint with V8 engine.

• Includes Hangers and Hardware for an Easy Installation
• Super 50 Series Performance Mufflers Eliminates Drone
• Mandrel-bent 16-gauge Aluminized Steel Tubing
• Moderate to Aggressive Exterior Exhaust Tone
• Polished 3.00-inch Stainless Steel Tips
• Dyno Tuned for Maximum Performance
• Includes H-pipe Assembly

Upgrade the sound and performance of your classic muscle car with the Flowmaster 17120 American Thunder Crossmember-Back Exhaust System. Designed for 1964-1972 Chevrolet El Camino and GMC Sprint models equipped with a V8 engine, this complete dual exhaust system delivers a moderately aggressive exterior tone while helping maintain a more comfortable sound level inside the cab. It is engineered for enthusiasts who want noticeable performance without excessive interior exhaust resonance.
Constructed from mandrel-bent 2.50-inch, 16-gauge aluminized steel tubing, the system promotes smooth exhaust flow and dependable durability. An included H-pipe assembly helps equalize exhaust pressure, reduce backpressure during deceleration, and support improved power and throttle response. The system is dyno tuned for maximum performance and may also contribute to improved fuel mileage when paired with a properly maintained engine and compatible components.
The Flowmaster 17120 includes a pair of specially selected Super 50 Series performance mufflers, providing a deep, powerful sound with reduced drone. Mandrel-bent tailpipes exit at an angle behind the rear wheels and are finished with polished 3.00-inch stainless steel tips for a clean, aggressive appearance. Hangers and installation hardware are included to support a straightforward installation using the vehicle’s compatible mounting points. Verify vehicle configuration and exhaust clearance before installation.

Features:

• Vehicle Fitment: Designed for 1964-1972 Chevrolet El Camino and GMC Sprint models with a V8 engine

• Exhaust Configuration: Complete crossmember-back dual exhaust system with included H-pipe assembly

• Tubing Construction: Mandrel-bent 2.50-inch, 16-gauge aluminized steel tubing

• Sound Profile: Moderately aggressive exterior exhaust tone with reduced interior drone

• Mufflers: Includes Super 50 Series performance mufflers for deep, controlled sound

• Exhaust Tips: Polished 3.00-inch stainless steel angle-cut tips positioned behind the rear wheels

• Performance Design: Dyno tuned to support improved exhaust flow, throttle response, and power

• Installation: Includes hangers and hardware for a more convenient installation

Fitment:
Chevrolet El Camino Base 1964
Chevrolet El Camino Base 1965
Chevrolet El Camino Base 1966
Chevrolet El Camino Base 1967
Chevrolet El Camino Base 1968
Chevrolet El Camino Base 1969
Chevrolet El Camino Base 1970
Chevrolet El Camino Base 1971
Chevrolet El Camino Base 1972
Chevrolet El Camino Custom 1968
Chevrolet El Camino Custom 1969
Chevrolet El Camino Custom 1970
Chevrolet El Camino Custom 1971
Chevrolet El Camino Custom 1972
Chevrolet El Camino SS 1968
Chevrolet El Camino SS 1969
Chevrolet El Camino SS 1970
Chevrolet El Camino SS 1971
Chevrolet El Camino SS 1972
GMC Sprint Base 1971
GMC Sprint Base 1972
GMC Sprint Custom 1972