Flo Pro 2017-2019 Duramax 2500/3500 6.6L, 4″ Cat and DPF Delete Pipes, Race Exhaust, w/OEM 4-bolt flange, EC-CC/SB/LB-Dually – FLO SS882
In 2017-2019, GMC made a production change in the connection between the catalytic converter and the turbo direct pipe on the L5P. Please ensure you have the newest 4-bolt style flange before ordering any of the kits
2017-2019, 6.6L, 2500/3500, L5P, Race Exhaust, w/ OEM 4-BOLT Flange
* IMPORTANT NOTE: These kits will only fit models equipped with the OEM style 4-bolt flange off the turbo direct pipe! If you have a 3-bolt flange, please see our 2015 * Duramax Exhaust Kits.