
FlowFX Cat-Back Exhaust System Fits Select GM 2500 HD, 3500 HD 6.6L Gas Trucks
Flowmaster 718111 FlowFX Cat-Back Exhaust System Features:
- Includes hardware
- Black ceramic-coated stainless steel tips provide a modern appearance
- Dyno-tuned for increased power gains
- Creates a deep exhilarating exhaust tone
- Heavy-duty 16-gauge mandrel-bent tubing maximizes flow
- Equipped with FlowFX straight-through performance mufflers
- Simple bolt-on design using original equipment (OE) hanger points
Emissions: This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
Aggressive Exhaust Tone
Bright 409 stainless steel Flowmaster FlowFX Exhaust Systems have straight-through FlowFX mufflers with a large core for a deep, moderate-to-aggressive exterior and interior sound. Each kit is designed and dyno-tuned for maximum performance, so you know you are getting the most out of your exhaust system.

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