Fits: 2001-2007 GMC & Chevy Dually Trucks LBZ, LLY, LB7 w/ 6.6L Duramax

The FLO 727 by FLO-PRO is a 4" CAT back dual exhaust system for the 2001-2005 GM dually trucks with the 6.6L Duramax. This system replaces your restrictive OE exhaust with a 4" high-flow system with in-line muffler from the catalytic converter back. It not only sounds better but it will also improve your torque, throttle response, and mileage!

Features:

• 4" Cat-back Dual Exhaust system.
• Includes Muffler
• Alumized Steel
• Dual Side Exit
• Easy Install - Mounts to OE Hangers

Note: Dual Pipes may require slight modifications or have fitment issues on trucks with Air Bags or Suspension Lifts Lifts

Part Number: FLO-727