With thirty-five years of experience, Flowmaster has specialized in automotive science and various patent protecting technologies. Ushering a new standard, the brand has shown a revolutionary development in the past few decades. The brand has an aim to design the best automotive products, delivering high-end performance. The highest quality of exhaust products, advanced manufacturing techniques and unwavering dedication toward customers are what set this brand apart from others. Flowmaster Performance has embraced innovative technologies to improve its product line. From its FlowFx straight-through design to legendry chambered, every product delivers outstanding performance.
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.
- Stainless Steel Construction.
Cat-back System - DOR/S - American Thunder - Moderate/Aggressive Sound.
Fits 2009 to 2013 Silverado and Sierra 1500 with a 5.3L Flex Fuel V8 engine and fits the Crew Cab and Extra Cab configurations. Also fits 2007 to 2008 Chevrolet Silverado and GMC Sierra 1500 with a 4.8L or 5.3L. Professional installation by a licensed mechanic required.
Fitment & Application:
- 2013 GMC Sierra 1500 5.3L V8 4DR Crew Cab/EXT Cab
- 2012 GMC Sierra 1500 5.3L V8 4DR Crew Cab/EXT Cab
- 2011 GMC Sierra 1500 5.3L V8 4DR Crew Cab/EXT Cab
- 2010 GMC Sierra 1500 5.3L V8 4DR Crew Cab/EXT Cab
- 2009 GMC Sierra 1500 5.3L V8 4DR Crew Cab/EXT Cab
- 2008 GMC Sierra 1500 5.3L V8 4DR Crew Cab/EXT Cab
- 2007 GMC Sierra 1500 5.3L V8 4DR Crew Cab/EXT Cab
|Shipping Method||UPS/FedEx/USPS Ground|
|Availability||Possibly special-order. Call or email to check stock.|
|California Prop 65 Warning||
This product can expose you to chemicals including lead and chromium (hexavalent compounds) which are known to the State of California to cause cancer and birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov