Flowmaster 99-06 GM 1500 V6/V8 FlowFX Cat-Back DOS Exhaust System

This Flow FX cat-back exhaust system is for 1999-2007* (*Classic body) GM Silverado/Sierra 1500 with either a 4.3L, 4.8L or 5.3L engine and is manufactured using durable 409 stainless steel throughout and features a 3.00-inch inlet pipe leading to a single inlet/dual outlet Flow FX "straight-through" muffler for great sound and maximum performance. The dual 2.50-inch mandrel-bent tailpipes exit out the side at an angle behind the rear wheels directing exhaust away from your boat or travel trailer when towing. The system is finished off with a pair of large 4.50-inch diameter black ceramic coated 304S stainless steel tips, giving your truck a custom look that goes hand in hand with that deep performance Flow FX sound. The system uses all the existing factory hanger locations and includes an additional hanger to install the new left side tailpipe. Includes installation instructions and all necessary hardware for an easy installation that you can do at home. Note: Fits 2 & 4 Wheel Drive with 143.5 inch wheelbase.

• Mandrel-bent 16-gauge 409 stainless steel tubing maximizes exhaust flow with excellent corrosion resistance
• Includes complete hardware and factory styled hangers in stock locations for an easy installation
• Flow FX "straight-through" performance muffler delivers a deep tone and improved exhaust flow
• Large 4.50-inch black ceramic coated stainless steel tips offers an aggressive look
• Increases of up to 8 hp and 7 lb/ft of torque over the stock exhaust
• System produces a nice rumble with minimal interior resonance
• Clears the factory spare tire
• Lifetime Limited Warranty

Vehicle Fitment

• 1999-2006 Chevrolet Silverado 1500
• 1999-2006 GMC Sierra 1500
• 2007 Chevrolet Silverado 1500 Classic
• 2007 GMC Sierra 1500 Classic

Please verify exact fitment for your trim and engine before ordering.

🚚 Vendor Direct Shipment: This item is not stocked in our warehouse and ships directly from the manufacturer. Please allow additional handling time before dispatch.

Manufacturer Part Number: 717924

Images are for illustrative purposes only. Actual product may vary.

⚠ WARNING (California Proposition 65): This product can expose you to chemicals which are known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.