Flowmaster 817395 - Flowmaster Stainless Steel Exhaust Systems

Flowmaster #389-817395

1999-05 Chevy/GMC Silverado/Sierra 1/2-Ton

409S Stainless Steel Construction

3" Inlet Diameter / DuaL 2.5" Outlet Diameter

Super 40 Series Muffler

American Thunder

3" Polished SS Tips

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Complete list of Flowmaster Stainless Steel Exhaust Systems

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Flowmaster 817395 - Flowmaster Stainless Steel Exhaust Systems Details

GM Trucks

For the person who wants the aggressive look of a NASCAR race truck along with all the benefits that a Flowmaster cat-back exhaust system provides. D.O.S.S. (Dual Out Same Side) systems are the perfect choice. American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. 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.

1999-2005 GM 1500 Series American Thunder 2.50" Cat-Back 409S.

1999 - 2005 CHEVROLET SILVERADO 1500 V8 4.8 GAS FI

1999 - 2005 CHEVROLET SILVERADO 1500 V8 5.3 GAS FI

2002 - 2005 CHEVROLET SILVERADO 1500 V8 5.3 FLEX FI

1999 - 2005 GMC SIERRA 1500 V8 4.8 GAS FI

1999 - 2005 GMC SIERRA 1500 V8 5.3 GAS FI

2002 - 2005 GMC SIERRA 1500 V8 5.3 FLEX FI

Flowmaster SS Exhaust Systems provide an aggressive tone both inside & outside the vehicle. 409S Stainless Steel, Mandrel-bent tubing & free flowing mufflers increase horsepower & torque throughout the RPM range. Flowmaster cat back exhaust systems are a true bolt-on with no welding required.