BD 1047005 1.0 Turbo Turbine Exhaust HousingUpgrade you stock 0.84 stock turbine housing to this new 1.0 housing from BD Diesel. Improves flow, reduces back pressure, and lower EGTs. This turbo housing is more efficient than the OEM turbine housing and it's a great upgrade for the stock turbo. Increase the flow and reduce the back pressure over the factory .84 housing. Lower exhaust temperatures in the stock turbo with this simple exhaust housing change.