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Flo~Pro 4" Downpipe Back Dual System | 2001-2007 Chevy/GMC Duramax LB7/LLY/LBZ 6.6L

  • Fits 2001-2007 6.6L, 2500HD, LB7/LLY/LBZ (DOES NOT fit 3500 models)
  • Fits EC-CC/SB-LB (DOES NOT fit DUALLY models)
  • Available in aluminized or stainless steel
  • With muffler
  • May require modifications with suspension mods and/or airbags
  • Utilizes OEM hangers
  • Includes all hardware required for installation
Pricing: $549.00

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Flo~Pro's 4" downpipe back dual exhaust system for your 2001-2007 Chevy/GMC Duramax LB7, LLY, or LBZ 6.6L diesel is available in aluminized or stainless steel and comes with a muffler.

Important Note: May require modifications with suspension mods and/or airbags.


  • Aluminized w/ Muffler: 701
  • Stainless w/ Muffler: SS701

Emissions Disclaimer: This product is not currently CARB exempt and is not available for purchase in California or for use on any vehicle registered with the California Department of Motor Vehicles.


Shipping Information

  • Item Requires Shipping
  • 70.0 lbs.
  • W48.0000” x H20.0000” x L12.0000”
  • Free Shipping