Flowmaster 718111 FlowFX Cat-Back System Single Exhaust System Kit

This Flowmaster ® FlowFX ® cat-back exhaust system for the 2020 to 2022 GM 2500HD/3500HD trucks with the 6.6 Liter gas engine is manufactured using durable 409 stainless steel throughout and features 3-1/2 to dual 3.00 Inch mandrel bent pipes for better exhaust gas flow, and a FlowFX "straight-through" muffler is used for a moderate sound level and maximum performance. Maximum increases on the dyno revealed +9 Horsepower and +10 Pound Feet at the rear wheels. This system exits out both sides, behind the rear wheels with 4-1/2 Inch black ceramic tips for added style and a custom look. The system uses all the existing factory hanger locations and includes installation instructions and all necessary hardware for an easy installation that you can do at home.

• 3-1/2 To Dual 3.00 Inch Mandrel Bent 16-Gauge 409 Stainless Steel Tubing Maximizes Exhaust Flow And Improves Durability
• Max Increases Of Up To 9 Horsepower And 10 Pound Feet Over The Stock Exhaust At The Rear Wheels
• 4-1/2 Inch Black Ceramic Coated Tips Add A Custom Look To The Truck
• Flowfx “straight Through” Performance Muffler Delivers A Deep, Moderate Performance Tone And Improves Exhaust Flow
• Features Complete Hardware And Factory Styled Hangers In The Stock Locations For An Easy Installation
• Limited Lifetime Warranty