For the person who wants a subtle custom appearance with all the benefits that a Flowmaster® Cat-back exhaust system provides. This Force II single exhaust system includes all stainless steel 3.00-inch mandrel-bent tubing flowing into a Super 50™ Series muffler, uses the factory hanger locations and has a large single tailpipe finished off with a 3.50-inch polished stainless steel tip. This Force II® system delivers a mild exterior and interior tone, and is suited to customers looking for efficiency improvements without a lot of noise. Especially recommended for towing applications. 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 and are covered by our Lifetime Limited Warranty. Notes: Also fits 2009-2013 GM Silverado/Sierra 1500 with 5.3L Extended Cab/6-ft bed and CC/5.5ft bed.. 2007-2008 GM Silverado/Sierra 1500 4.8L, 5.3L engine flex fuel. All wheelbases except EC/LB. Also fits 2009-2013 GM Silverado/Sierra 1500 with 5.3L Extended Cab/6-ft bed and CC/5.5ft bed. - Mild sound. Fits 2007-2008 GM Silverado/Sierra 1500 4.8L, 5.3L engine flex fuel, all wheelbases except EC/LB. Also fits 2009-2013 GM Silverado/Sierra 1500 with 5.3L EC/6ft bed and CC/5.5ft bed.. Flowmaster 07-13 GM 1500 5.3L SS Force II Cat-Back Exhaust System. Includes Hangers and all Hardware for an Easy Installation. Mandrel Bent 16 gauge Stainless Steel Tubing. Flowmaster Force II Cat-back Exhaust System. Connects After Factory Catalytic Converter. Stock to Mild Exterior Exhaust Tone. 0713 GM 1500 53L FII SOS 409S. Lifetime Limited Warranty. Minimal Interior Drone. SYS 07-13 GM 1500 5.. SYS 07-13 GM

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