Exhaust System, American Thunder, Cat-Back, Aluminized Steel, Polished Tips, Dodge, Ram 1500 Pickup, Kit Check to make sure this part fits your application 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 the 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. 1/2 Ton 5.7L Hemi Magnum 2 & 4 Wheel Drive 140" WB 2.50" Outlets 50 Series H.D. Muffler 3.00" Logo Embossed Stainless Tips American Thunder Muscle Truck DOSS Exit RH Side Before Rear Axle.