Flowmaster American Thunder Dual Exhaust System; Side/Rear Exit (07-13 5.3L Silverado 1500)

Description

Delivers Powerful Aggressive Sound. The Flowmaster American Thunder Cat-Back Exhaust is designed to deliver a race-inspired powerful and aggressive sound externally. Additionally, Flowmaster engineered the exhaust to deliver a milder, moderate sound level inside the cab for a more comfortable ride. And as a bonus, the exhaust exit can be configured for either split side or dual rear exits for flexible customization.
Improves Performance. Flowmaster’s Delta Flow technology was primarily designed to vastly improve scavenging which in addition to the efficient exhaust flow of the double mandrel-bent tubing significantly increases performance. Enjoy improved horsepower, torque, and mileage.
Durable Construction. The American Thunder is made from premium material to ensure durability and long-lasting service. Flowmaster’s precision-machined mandrel bent tubing is designed for the smoothest airflow and best possible sound levels.
All Bolt-On Installation. The American Thunder Cat-Back Exhaust is designed to make the installation process as simple as possible. While not required, Flowmaster recommends welding all slip-fit connections for a more secure installation.
Application. The Flowmaster American Thunder Cat-Back Exhaust with split side or rear exits is designed to fit 2007 to 2013 5.3L Chevrolet Silverado 1500 Extended Cab and Crew Cab models.

• Fits models with a 143.5 or 157.5-inch wheelbase

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Flowmaster 817680

CA Residents: WARNING: Cancer and Reproductive Harm

• Moderate Internal and Aggressive External Sound Levels
• Designed to Improve Scavenging and Airflow to Increase Horsepower and Torque
• Delta Flow™ Super 40 Series Muffler with Welded Baffles
• Has 2.5 in. Double Mandrel Bent Stainless Steel Tubing
• Comes with 3.5 in. Polished Stainless Steel Double-Walled Exhaust Tips
• Split Side Exits Behind the Rear Wheels or Dual Rear Exits
• Bolt-On Installation
• Fits 2007 to 2013 5.3L Chevrolet Silverado 1500 Extended Cab and Crew Cab models.