EXHAUST DOWN PIPE GM 3' 11-15 6.6L DURAMAX

Inlet/ Outlet Sizes: 3 ''OD / 3 ''OD

Piping Diameter: 3"

2011-2015 Chevy/GMC 2500/3500 6.6L Duramax Diesel

Does Not Fit 2015.5+ Model With Flange Outlet