Engine & PerformanceOil Feed Turbosmart Billet Turbo Drain 58mm Extension -10 MALE to -10 PORT Engine & PerformanceOil Feed Turbosmart Billet Turbo Drain 58mm Extension -8 MALE to -8 PORT Engine & PerformanceOil Feed Turbosmart Billet Turbo Drain adapter with Silicon O-ring. 38 – 44mm slotted hole centre – small frame universal fit. Engine & PerformanceOil Feed Turbosmart Billet Turbo Drain adapter with Silicon O-ring. 50.8mm Mounting Holes – T3/T4 style fit. Engine & PerformanceOil Feed Turbosmart Billet Turbo Drain adapter with Silicon O-ring. 52.4mm mounting hole center – Large frame universal fit. Engine & PerformanceOil Feed Turbosmart OPR -4 AN Fitting Kit – Silver