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2015.5 -2016 Duramax Flo Pro 5" Downpipe Back Exhaust With Muffler


2015.5-16 Duramax 5" Downpipe Back Exhaust System (FLO 671)

Fits: 2015.5-2016 GMC & Chevy Trucks w/ 6.6L Duramax w/ V-band flange at Downpipe.

Increase the power of your Duramax and achieve that aggressive sound you've been looking for. Easily installed on OEM hangers and connected with lap joints, allowing for easier modifications in the future. 


  • 5" Downpipe Back Single Exhaust system
  • Lowers EGT's
  • Muffler¬†Included
  • Aluminized & Stainless Steel
  • Single Side Exit
  • OEM 3-Bolt Flange
  • Easy Install - Mounts to OE Hangers

Part Number: FLO 671