New In Stock! FMD Exhaust Manifold for Detroit Engines!  FMD Turbo Supply’s new manifold comes with a TWO YEAR WARRANTY and is the best known direct OEM replacement/upgrade for your engine.  This manifold comes with ALL the mounting hardware as well!  That’s right, all exhaust studs, turbo studs, and gaskets are all included! Gain more horsepower, fuel economy and more by making the switch to FMD! Applications: Years for 12.7L 1987-2003, Year for 14.0L 2001-2003, replaces OEM# 23532122, Primarily used in Freightliner & Western Star Trucks 12.7L or 14.0L non EGR Engines