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Flowmaster 17120 American Thunder Header Back Exhaust System Flowmaster 17120
$2,105.00
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....
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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.
Specifications:
| Description_DES | American Thunder Header Back Exhaust System |
| Description_EXT | American Thunder Header Back Exhaust System; Dual; Dual Side Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/50 Series™ SUV Mufflers/3.0 in. Stainless Tips; |
| Description_FAB | Mandrel Bent 16 Gauge Aluminized Tubing |
| Description_FAB | Moderate to Aggressive Exterior Exhaust Tone |
| Description_FAB | Includes Hangers And Hardware For Easy Installation |
| Description_FAB | Connects After Factory Catalytic Converter |
| Description_FAB | Premium Flowmaster Quality |
| Description_FAB | 3 Year Limited Warranty |
| Description_MKT | 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. |
| Description_SHO | Exhaust System Kit |
This Part Fits:
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1971 | GMC | Sprint | ||
| 1972 | GMC | Sprint |
Shipping Information
We offer FREE shipping on all orders within Canada. Most orders ship within 1-2 business days.
Standard delivery typically takes 3-7 business days depending on your location.
Returns Policy
We accept returns within 30 days of purchase. Items must be in original condition with all packaging.
For returns or exchanges, please contact our customer service team.

