1.8T oil feed adapter, simplifies installation of aftermarket oil lines. Adapts to the stock oil feed line source at oil filter housing to -4 Male AN Flair. Adapter goes from proprietary Metric thread on stock oil filter housing to -4 AN Male. Allows any of our -4 oil feed lines to be used on the 1.8T engine without tee-ing into the pressure port. Remove the stock oil feed line, install new fitting, and use new AN line.