Description
American Thunder Cat Back Exhaust System; Dual; Dual Rear Same Side Exit; Incl. 2.5in. Tailpipes/Sup
Flowmaster’s American Thunder cat-back exhaust system for the 2007-2013 GM 1500 trucks is perfect for the person looking for moderate to aggressive sound levels both inside and outside of the truck, with all of the performance benefits that you would expect from Flowmaster. This bolt-on DOR/DOS (Dual Out Rear or Dual Out Side) emissions-legal system is for Extra Cab/Standard Bed and Crew Cab/Short Bed models only, with the 5.3L gas engine (and 07-08 4.8L) and features a stainless steel Super 40 Series muffler and dual mandrel bent 2.50 in. stainless steel tailpipes. The system is finished off with polished 3.50 in. double wall stainless steel tips. The exhaust system is covered by Flowmaster’s Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.
Manufacturer of performance exhaust systems, mufflers, performance air intakes, turbo boost modules, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more.
Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 5 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels.
Since 1983, Flowmaster is the company you can trust, and has led the industry in offering only the best products you can buy for your vehicles. 
