Vehicle Fitment
| Make | Model | Year |
|---|---|---|
| Chevy | El Camino | 1964-1972 |
| GMC | Sprint | 1971-1972 |
Product Details
American Thunder™ Aluminized Steel Header-Back Exhaust System with Split Side Exit by Flowmaster®. Exhaust System Type: Header-Back. Exhaust Tubing Material: Aluminized Steel. Main Tubing Diameter: 2.5". Exhaust System Sound: Aggressive / Loud. American Thunder exhaust system is perfect for the person looking for a moderately aggressive sound level outside of the car, while maintaining a mild sound level inside, with all of the performance benefits that you would expect from Flowmaster. American Thunder gives you the classic sound of a Flowmaster chambered exhaust, which is the classic sound of classic American big performance engines. This is a system that gives the most sedate vehicle a performance rumble.
Notes
- The system comes with Super 50 Series mufflers
- Connects After Factory Catalytic Converter
- Remember to check your local and state laws regarding vehicle noise restrictions
Specifications
| Exhaust System Type: Header-Back |
| Exhaust Tubing Material: Aluminized Steel |
| Exit Location: Split Side |
| Exit Configuration: Dual |
| Main Tubing Diameter: 2.5" |
| Exhaust System Sound: Aggressive / Loud |
| Muffler Inlet Diameter: 2.5" |
| Muffler Outlet Diameter: 2.5" |
| Muffler Series: Super 50 |
| Muffler Quantity: 2 |
| Tip Quantity: 2 |
| Tip Outlet Diameter: 3" |
| Hardware Included: Hangers, Mounting Hardware |
Includes
- (1) 64-67 Hanger Mount (L) (Part Number 298HA)
- (1) 64-67 Hanger Mount (R) (Part Number 297HA)
- (1) 68-72 Hanger Mount (L) (Part Number 290HA)
- (1) 68-72 Hanger Mount (R) (Part Number 289HA)
- (1) H-Pipe Assembly (Part Number 16277)
- (1) Parts kit (Part Number PK355)
- (1) Tailpipe Hanger (L) (Part Number 238HA)
- (1) Tailpipe Hanger (R) (Part Number 237HA)
- (1) Tailpipe, Left (Part Number 16234)
- (1) Tailpipe, Right (Part Number 16235)
- (2) 5/16" Flat Washers (Part Number HW302)
- (2) 5/16" Lock Washers (Part Number HW308)
- (2) 5/16" Nuts (Part Number HW102)
- (2) 5/16" x 1" Bolts (Part Number HW204)
- (2) Clamp Hanger Assembly (Part Number 489HA)
- (2) Connector Pipe, (R/L) (Part Number 16293)
- (2) Muffler (Part Number 52558)
- (4) 1/4" x 1" Self Tapping Screw (Part Number HW214)
- (4) 2-1/2" Clamps (Part Number MC250S)
- (4) Rubber Isolator (Part Number HA168)
- (8) Push-on hanger keepers (Part Number HW502)
Features
- High Quality Performance Sound
- Increases Torque and Power
- Mandrel Bent 16 Gauge Tubing
- Includes Hangers and Hardware for Easy Installation
- Every System Tuned on Dynamometer
American Thunder gives you exactly the sound that is promised by the name of the series. The exhaust sound of the American Thunder system has become a symbol of American power that is recognized all over the world. American Thunder is the most popular of the Flowmaster exhaust systems, enhancing power, torque, throttle response and mileage for automobile enthusiasts all over the world.
All Flowmaster exhaust systems give the same improvement of performance. All Flowmaster exhaust systems produce a beautiful deep performance tone. Choosing between the five different exhaust systems is not a technical decision – it is all up to your personal taste. It’s A Sound Decision™. The racing origin is evident in every Flowmaster exhaust system. All the five series of systems are tuned for maximum performance. They differ in technology and tuning, and thus in tone and character, giving you a performance engine sound to your personal liking.
Flowmaster exhaust systems employ two unique technologies, the patented Delta Flow and the Laminar Flow. They give different characters of sound and can be tuned to achieve the desired exhaust note. Flowmaster Exhaust System Technology is so versatile and gives such a high degree of control that it is used both by racers, who want maximum power, and by the U.S. Air Force in Stealth applications, where maximum silence and minimum heat emissions are prime considerations.
Be it for a domestic or import truck, SUV, off-road warrior, daily driver, muscle car, euro-spec cruiser or sport compact vehicle, Flowmaster technicians personally hand select the right muffler, tubing size, resonator, and tip to make the process easy for you. Best of all, Flowmaster stainless steel exhaust systems are covered by a Limited Lifetime Warranty; ensuring that your exhaust will last as long as you own your vehicle. If you choose aluminized steel products, Flowmaster backs them up with a 3-year warranty.
Flowmaster® has its roots in solving the engine noise problems encountered by California racers in the 1980s. In 1983 Flowmaster’s founder, Ray Flugger, created his first patented design of racing silencers, which dampened noise with minimal loss of power. Ray attached handles to ease carrying the square shaped race mufflers through the race pits, and the mufflers became known as the "suitcase mufflers." Today, the innovative Flowmaster mufflers are the result of years of development with top race engine builders, thousands of hours of dyno research and "real-world" on-track testing.
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