6.6L GMC Diesel Exhaust Kits (2015.5-2016)

IMPORTANT NOTE

Halfway through 2015, GMC made a production change in the connection between the catalytic converter and the turbo direct pipe on the LML. Please ensure you have the late LML 3-bolt style flange before ordering any of the kits listed on this page. If you have the newer 4-bolt flange instead, please refer to our 2017+ L5P exhaust sytems.



4" CAT & DPF Race Pipes

AluminizedStainless
2015.5-2016, 6.6L, 2500/3500, LML, Race Exhaust, w/ OEM Flange
EC-CC/SB-LB-Dually ..............................................................................................
872* SS872*
* IMPORTANT NOTE: These kits will only fit models equipped with the OEM style 3-bolt flange off the turbo direct pipe! If you do not have a 3-bolt flange, please see our 2015+* Duramax Exhaust Kits.



4" Downpipe Back Single

AluminizedStainless
2015.5-2016, 6.6L, 2500/3500, LML, Race Exhaust, w/ OEM Flange
EC-CC/SB-LB-Dually ..............................................................................................
871* SS871*
No Muffler Kit ..........................................................................................
871NM* SS871NM*
* IMPORTANT NOTE: These kits will only fit models equipped with the OEM style 3-bolt flange off the turbo direct pipe! If you do not have a 3-bolt flange, please see our 2015+* Duramax Exhaust Kits.

5" Downpipe Back Single

AluminizedStainless
2015.5-2016, 6.6L, 2500/3500, LML, 4" Race Pipe, w/ OEM Flange
EC-CC/SB-LB-Dually ..........................................................................
671* SS671*
No Muffler Kit ...........................................................................................
671NM* SS671NM*
* IMPORTANT NOTE: These kits will only fit models equipped with the OEM style 3-bolt flange off the turbo direct pipe! If you do not have a 3-bolt flange, please see our 2015+* Duramax Exhaust Kits.


*Not available to ship to the United States
* IMPORTANT NOTE: These kits will only fit models equipped with the OEM style 3-bolt flange off the turbo direct pipe! If you do not have a 3-bolt flange, please see our 2015+* Duramax Exhaust Kits.



5" Downpipe Back Dual

AluminizedStainless
2015.5-2016, 6.6L, 2500/3500, LML, Race Exhaust, w/ OEM Flange
EC-CC/SB-LB-Dually, No Muffler, 4" Cat Pipe ...............................................................................................
771* -
* IMPORTANT NOTE: These kits will only fit models equipped with the OEM style 3-bolt flange off the turbo direct pipe! If you do not have a 3-bolt flange, please see our 2015+* Duramax Exhaust Kits.

WARNING
*Not available to ship to the United States