All PhatShaft turbos for the 2nd Generation Cummins trucks require a 4" downpipe, as opposed to the factory 3". This downpipe replaces the factory downpipe and allows for the four inch outlet of the PhatShaft turbos.
All PhatShaft turbos for the 2nd Generation Cummins trucks require a 4" downpipe, as opposed to the factory 3". This downpipe replaces the factory downpipe and allows for the four inch outlet of the PhatShaft turbos.