- Includes all Clamps, Hangers and Necessary Hardware
- FlowFX "Straight-through" Performance Muffler
- Large 4.00-inch Black Ceramic Coated Tips
- Dyno-Tuned For Maximum Performance
- Stainless Steel Mandrel Bent Tubing
Flow master 717787 Cat-Back 409S - Flow Kit - DOSS - Moderate or Aggressive Sound - 14-18 GM 1500 Series Exhaust System Kit Cat-Back 409S - Flow Kit - DOSS - Moderate or Aggressive Sound Dyno-Tuned For Maximum Performance. Stainless Steel Mandrel Bent Tubing. Moderate or Aggressive Sound. Easy Installation.