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Flo~Pro 4" Cat Back | 2001-2005 Chevy/GMC Duramax LB7-LLY 6.6L (OEM 4-bolt flange)

  • Fits 2001-2005 6.6L, 2500/3500, LB7/LLY
  • Fits EC-CC/SB-LB-Dually
  • Fits models with OEM 4-bolt flange
  • Available in aluminized or stainless steel
  • With muffler
  • Utilizes OEM hangers
  • Includes all hardware required for installation
Pricing: $325.00

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Flo~Pro's 4" cat back single exhaust system for your 2001-2005 Chevy/GMC Duramax LB7 or LLY 6.6L diesel with OEM 4-bolt flange is available in aluminized or stainless steel and comes with a muffler.


  • Aluminized w/ Muffler: 823
  • Stainless w/ Muffler: SS823

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.


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  • Item Requires Shipping
  • 30.0 lbs.
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