This turbocharger features our high flow 6 blade billet impellar,62mm, paired with a 76x67 turbine. This turbo gets a new bearing housing, all new internals and a machined turbine housing. This turbo is perfect for a 400-650+ horsepower truck. Lowers egts over the oem he351cw and is good for up to 50 pounds of manifold pressure. Turbocharger includes new t3 open gasket and oil drain gasket. One year limited warranty. No core required.