The aggressive sound of American Thunder, from Flowmaster exhaust!

These American Thunder Flowmaster exhaust systems have been designed with the latest exhaust technology available. Through this technology, you will experience improvements in acceleration, passing power, and fuel mileage. The key to these performance improvements is Flowmaster's use of mandrel-bent tubing. The tubing allows for superior exhaust gas flow, while aluminized steel construction allows for its corrosion-resistant qualities. These Flowmaster American Thunder exhaust systems also feature a muffler(s) that'll give you plenty of Flowmaster sound.

• All Models (Incl SUT)
• Includes Resonator
• 3.50" Outlet
• 50 Series Heavy Duty Muffler
• 4.00" Logo Embossed Stainless Tip
• American Thunder
• SOR

Flowmaster Hummer H2 American Thunder Exhaust System
$499.99