Torque Solution Extended Oil Drain Flange - 10AN for T3/T4/PTE/Turbonetics/Comp/BWTorque Solution Extended Port Matched Oil Drain Flange is designed to give you extra clearance from the turbo housings making for an easier install on T3 T4 PTE, Borg Warner, Turbonetics, Comp, etc turbos. Made from CNC 6061 billet aluminum and integrated with a 10AN flare fitting. The bottom of the flange is also port matched with a tapered bore to promote the oil flow and to prevent oil pooling in the turbo. We have also incorporated a recess with